How to credit a ghostwriter工作

...developer)帮助我们开发一个在微信（WeChat）上运行的小程序（mini program），它的核心功能有：注册登录，用户信息展示和真实身份认证，有趣的活动发布及报名，创新创意idea发布，加好友即时聊天，推荐转发。 It includes 4 main pages: list: all the registered entrepreneurs listed here, according to their credit, latest log-in time,and etc. when clicked, other users can browse this entrepreneur’s detail info, and follow him/her, and chat with each other(registered users only). list:display the startup ideas and projects clicked,other users can see what's about,and know what this user needs, for example, a CTO, CMO...also,any user can give feedback to this idea or project. page:display some interesting activities, user stories and etc.. page:personal information, including id, contact, education and job certification, ideas and projects...

I'm working on a catalogue of 952 bird species from Costa Rica and I need help sourcing and saving a single image for each species. The images have to be named after the bird species they represent, and should be saved in medium resolution. The images are to be sourced from , with the primary purpose of giving due credit to the artists. Note: we will use the scientific name to keep it simple - I have included a list of all birds. Ideal Skills and Experience: - Proficiency in navigating and utilizing - Strong understanding of bird species names - Ability to save images in medium resolution, preferably in JPEG format Please provide an example of 3 birds of your choice with picture and naming convention to prove y...

...for a developer to create an easy way for me to embed on my website custom chatbots I make in Claude, OpenAI GPT/Assistants etc., and limit each user’s access (by time spent and/or token amount). You’ll need to connect with APIs and create a very simple front-end interface for me to create chatbots (write prompts, upload files for training when applicable, choose OpenAI Assistants), manage the chatbots (edit/delete etc.), and see conversations and stats. Overview of what you need to develop and how it needs to work: 1. In the interface (which you will create) on my site, I create custom chatbots. The interface needs to have an orderly list of chatbots one beneath another. For each chatbot, I can select...

I'm in need of a Flutter developer to build an app that will serve as a communication and data sharing platform between doctors and patients. The app should also include a subscription payment feature. Key Features: - Real-time messaging: Patients and doctors should be able to communicate seamlessly and instantly within the app. - Secure file sharing: It should be possible for patients to upload and share their medical history, test results and prescription information securely with the doctor. Payment Gateway: - The app should support credit card and PayPal payments for patients to send a payable subscription to their doctors. Ideal Skills and Experience: - Proficiency in Flutter and Dart for cross-platform app...

I'm looking for a talented professional who can create a substantial number of quality backlinks for my website. Key Requirements: - The primary aim is to improve website visibility. The backlinks should therefore support this goal directly. - You're encouraged to get creative and leverage your expertise to deliver the best results possible. Ideal Skills & Experience: - Proven experience in creating backlinks - Understanding of SEO best practices - Strong communication skills - Ability to work within a limited budget The type of websites the backlinks should come from is not specified, so you have the flexibility to make choices based on your expertise and experience. Your work will be highly appreciated and you c...

...seeking a proficient developer to create a camping gear rental website with a modern, clean design aesthetic. The name of the company is Camp Ready based out of Stratford, Prince Edward Island, Canada Key Features required include: - Shopping cart system for versatile gear rental process - Secure credit card payment integration - Distinct feature sections for camping essentials (tents, sleeping bags), cooking gear (stoves, coolers), and seating/comfort gear (chairs, hammocks) The ideal candidate will have experience in eCommerce website development, a keen eye for modern web design, and proficiency in payment gateway integration. Understanding the outdoor/camping market would be a plus. Efficiency, accuracy, and a user-friendl...

I'm looking for an experienced ghostwriter who specializes in the woodworking industry. The main objective of this project is to create a step-by-step instructional eBook for DIY woodworking enthusiasts and beginners. Key Requirements: - In-depth knowledge and passion for woodworking. - Proven experience in creating educational materials. - Ability to write clear, concise, and engaging content. - Understanding of the needs and interests of DIY woodworking enthusiasts and beginners. The ideal candidate should be able to effectively communicate complex woodworking concepts in an easily understandable manner. This project will involve creating a detailed guide, so attention to detail and a methodical approach to organizing...

I urgently need a quality design of a simple yet professional employee ID card in standard credit card size (86mm x 54mm). Important elements to be included on the card are the employee's name, photo, and position. If you can deliver this in 10 mins, I'd be happy to work with you. Ideal skills and experiences for this job includes quick design turn-around and understanding of professional design standards.

...an expert in Python programming, specifically proficient in Jupyter notebook, with a solid understanding and experience in credit card fraud and Reducing credit card, both from a theoretical and practical perspective. Your role involves: - Developing Python codes in Jupyter notebook for credit card fraud detection, reduction and Reducing credit card. Demonstrate excellent coding skills, with a focus on creating efficient, scalable and maintainable codes. - Writing academic level, research-intensive articles on credit card fraud prevention and Reducing credit card. These articles should delve into different types of credit card fraud and Reducing credit card, elaborate on various methods and techniques ...

I'm in need of an e-commerce website that will allow me to sell my physical products. I'm looking for a skilled developer that has experience with the following: - Integrating an e-commerce platform to Hostinger domain - +150 products hosting - Implementing payment gateways for Credit/Debit Cards and Cash on delivery - Assisting me in finalizing the color scheme and branding elements for the website It's important that the site is user-friendly and visually appealing and can manage a large inventory of products. The ideal candidate should be able to take my branding ideas and enhance them to create a cohesive and attractive online store.

I am in need of an e-commerce website with a robust database. The site will primarily focus on selling digital products. I require the following: - Integration of multiple payment methods including credit card, PayPal, bank transfer, yape, and plin. - A secure and efficient database to manage product listings, user accounts, and transactions. - An easy-to-use, intuitive design that encourages sales and provides a smooth customer experience. - Incorporation of features that help to grow the customer base and encourage repeat purchases. - A professional and polished finish that reflects the quality and security of my digital products. Ideal skills and experience for this project include: - Proficiency in e-commerce website developmen...

We need a website that allows us to provide pre-employment assessments for our clients. Nothing we need is new, and building from existing tools is acceptable. 1) Website. For the most part, pretty standard stuff. Other than this we would want: a) a test library so that people can see what tests we offer (but not the entire test, just a description or some example questions), and b) an ROI calculator - where the user can specify some details about number of jobs etc and we can show the ROI. We will provide the mathematical calculations. 2) Candidate Portal. Applicant needs to be able to: a) redirect to this from the job board or company career page, b) create an account and create and/or edit candidate profile. Prof...

I'm seeking a talented developer to create a B2B marketplace platform for the buying and selling of forest products. The platform should cater to a range of users including buyers, sellers, and administrators. Key Features: - User Management: Implement a user registration and login system. - Product Management: Allow users to list thousands of forest products in bulk via wood processors inventory system and facilitate a user-friendly search system. - Messaging System: Integrate a robust messaging system for seamless communication between buyers and sellers. - Auctions: Implement English and Capacity auctions for listing forest products based on market conditions. - Order Management: Develop an efficient order management s...

...for a skilled web developer to create a professional, modern e-commerce website for my business. The primary goal of the website will be to sell our products online. Key Requirements: - The website should have the capability to show more than 6 product categories, each with multiple products. - Integration for online payments is vital. The site should be able to process credit card payments, PayPal, and debit card transactions smoothly and securely. - The design should be user-friendly and visually appealing, encouraging visitors to browse and make purchases. - SEO optimization is necessary, as I want the site to rank well in search engines and attract organic traffic. - It's important for me to be able to...

I am seeking a developer to create a secure payment gateway specifically designed to serve small businesses who are processing US-based payments. This project requires a high level of expertise in creating payment gateways and integrations that support both credit/debit cards and bank transfers. Key skills and experience: - Expertise in developing payment gateways - Understanding of US payment systems - Experience in working with small businesses The payment gateway must meet the following requirements: - PCI-DSS Compliance: It's crucial that the solution adheres strictly to PCI-DSS guidelines to protect sensitive card information during transactions. - Fraud Detection: The system should include robust fraud detection capabilit...

I am in need of a professional freelancer capable of creating a high-risk, 3D secure payment processor for a WordPress website. This processor must integrate seamlessly with the site and provide the following functionalities: - Accept payments made through Visa, MasterCard, and American Express. - Implement high-risk security measures to protect sensitive data during transactions. Ideal candidates for this project should showcase extensive WordPress development skills, a profound grasp of payment gateway integration, and strong experience in high-risk, 3D secure systems for credit card payments. An understanding of the specifics of handling transactions via Visa, MasterCard, and American Express is a must. Your knowledge in cyber security ...

I'm looking for a professional who can help me enlist my collection of leather bags and wallets onto existing e-commerce site like amazon, flipkart, ebay, shopify etc. I also need help with managing the online selling process. Ideal Skills and Experience: - Prior experience with leather goods is a plus - Proficiency in e-commerce platforms and product listing - Strong understanding of e-commerce marketing and selling strategies - Excellent written communication for product descriptions - Familiarity with various payment processing methods Key Responsibilities: - Enlisting the available leather goods onto the e-commerce platform - Creating engaging product listings with attractive product images, detailed descriptions, and accurate price information - Managing the onli...

...objective is to target both men and women who appreciate stylish and durable accessories. Key Requirements: - Ecommerce Store Setup: I need help in setting up a professional and user-friendly online store. This includes ensuring that the platform is capable of handling a wide range of products, with a specific focus on leather bags. - Payment Processing: I intend to use credit card as the primary payment method. Your assistance in integrating a secure, efficient payment gateway that supports credit card transactions is crucial. Ideal Candidate: - Experience with Ecommerce Platforms: Proficiency in setting up and customizing online stores, particularly with a focus on product categories. - Payment Gateway Integration: Prior...

I'm seeking a skilled fiction ghostwriter to craft a 200-page, single-spaced book centered around the social and family drama genre intended to be published in hardcore, paperback, ebook, and audio formats. The story will revolve around friendships shaped by external societal pressures and the effects of biases in the workplace. You will receive a 17-page outline, including characters and relevant scene outlines that shape the story. Key Responsibilities : - Develop a rich and responsive narrative from the synopsis, chapter outline, and characters developed already - Portray complex characters and their journeys meaningfully. - Reflect societal pressures and their impacts on friendships effectively. - Position characters to be ...

...converting my website into a fully functional platform for vendors to sell their products. The site will be powered by wclovers and wcfm plugins along and wcfm app with Elemental. Here's what I'm aiming for: VENDOR FUNCTIONS: - Self-managed inventory: Allow vendors the freedom to manage their own inventory. - Promotion options: Vendors should have the capability to run their own marketing campaigns. - Direct communication: Enable vendors to communicate directly with their customers. PAYMENT METHODS: To ensure smooth transactions, I wish to provide various payment methods such as: - Credit/Debit Card - Bank Transfer Ideal candidates should possess a strong command in PHP, JavaScript and have a history of ...

...looking for a skilled app developer to create a rideshare platform for my personal driving business. The app should be accessible on both iOS and Android platforms and should be capable of offering a variety of payment methods for rides, including credit card, PayPal, Venmo, Zelle, Cash App and cash. Key Features: - User Registration and Login: Users should be able to create accounts, log in easily, and manage their profile information. - Ride Request and Booking: The app should allow users to request a ride and offer a price, see drivers bids, and pick a driver and book their ride. They will be able to schedule a future ride as well. - Drivers will be able to bid on jobs, or accept a cus...

I'm looking for an experienced web developer to create an e-commerce website for my business. The site should be able to handle transactions with credit cards as the main payment method. develop a website throw WordPress already we have account, also we have domain + hosting in GoDaddy, I attached here a sample of website, we need a website design and platform similar to this one, we will give you access to the account to complete the work. Requirements: - We have a domain registered with GoDaddy. - domain name - We need to develop a website similar to the one attached. - The website should function like a menu, featuring categories with products in each category. Each product will h...

Salve, sono Martina, una ghostwriter con oltre 5 anni di esperienza nella creazione di storie coinvolgenti che catturano l'attenzione e toccano il cuore dei lettori. Sono appassionata di trasformare idee e esperienze in narrazioni avvincenti e autentiche. Con una solida formazione nel campo della scrittura creativa e un'abilità innata nel catturare le emozioni, sono pronta a dare vita alle vostre storie in modo memorabile.

I'm in need of a developer skilled in creating eCommerce site on Shopify. I will be selling physical products, and need a platform that can support a seamless user experience. Main Tasks: - Create an aesthetically pleasing, user-friendly eCommerce site on Shopify. - Integrate Credit/Debit Card payment gateway for customer purchases. Requirements: - Proven experience in Shopify website development. - Portfolio of past eCommerce websites designed. - Knowledge of integrating payment gateways. I will provide all product details including descriptions, images, and prices. I'm seeking a professional who can deliver a well-structured and compelling site that will drive customer purchases.

I have After effects file of 3D phones. See file here: Task -- Not the whole video just 15 seconds --- add new background add shadow that moves with the phones add content that plays on front of phones See the effect I need in this reference: http...effects file of 3D phones. See file here: Task -- Not the whole video just 15 seconds --- add new background add shadow that moves with the phones add content that plays on front of phones See the effect I need in this reference: See the shadows following the credit cards? I need shadows like that to follow phones Please let me know. thanks!

Simple Shopify Store Fix: Need Logo, Copyright and Credit Card Icons centered on Footer of Shopify Store, For Both Desktop and Mobile Version. Look at photos attached. This is a very simple fix that will take less than 5 minutes if you read the description instead of just making an automatic bid. I will not consider any proposals over $20.

I require a dedicated and professional developer to craft an e-commerce website for my yoga business. The ideal platform will have the following features: - An online store that's easy to navigate, reflecting a clean and effective layout. - Customer review section to facilitate transparent and honest interaction with our clients. - Convenient product search/filter function to allow customers to quickly locate desired items. We'll be retailing yoga mats, clothing, and other related accessories. As such, the right candidate should have prior experience in creating e-commerce platforms that handle such inventory, effectively categorizing them to make discovery easy and intuitive. In terms of transaction handling, we plan ...

I am searching for a highly skilled ghostwriter who is experienced in crafting contemporary romance novels. The primary themes of the story should focus on the darker sides of romance. To ensure the desired impact and reader engagement, the narrative tone and mood should be both intensive and emotionally charged. Ideal Skills & Experience: • Extensive experience in Romance writing • Proven ability to craft dark themed stories • Ability to generate intense emotions through writing

I’m looking for a WordPress specialist to develop an e-commerce website for selling digital products. My customers should be able to browse the products with ease, add them to their digital shopping carts, and make payments securely and effortlessly. The site will be the face of my business, hence it should not only be functional but also visually appealing and user-friendly. Key features: - An easy to navigate product showcase - Shopping cart functionality - Secure PayPal and Credit Card payment integration. Ideal candidates are those who: - Have extensive experience in eCommerce website development, specifically on WordPress - Have successfully completed similar projects - Are familiar with the integration of PayPal and credit ca...

...need of a modern and bold logo for my website. Here are some key details: - **Style:** The logo should be modern, minimalistic and bright. - **Usage:** This logo will be primarily for my website. It's important that it scales well for different digital platforms and is visually appealing. - **Color Scheme:** I'm looking for a bright and bold color scheme. This should help the logo stand out and make a strong visual impact on the website. Ideal Skills and Experience: - Proficient in logo design, particularly modern styles - Strong understanding of color theory and able to create a visually striking piece - Experience designing for digital platforms - Ability to deliver a unique, memorable design that aligns with my brand's...

I am an entrepreneur who wants to buy and sell bitcoin (token). For this purpose, I want to have a user-friendly, secure, fast and affordable website built. I want the website to have the following features: The website should work smoothly on both desktop and mobile devices and have a modern design. The website should offer a platform where users can easily register, manage their accounts, deposit and withdraw funds, and buy and sell bitcoin (tokens). The website should be able to display current market data, charts, analysis and news and offer users different trading strategies. The website must comply with the highest standards in terms of security and protect users' personal and financial information. The website must have SSL cert...

I am an entrepreneur who wants to buy and sell bitcoin (token). For this purpose, I want to have a user-friendly, secure, fast and affordable website built. I want the website to have the following features: The website should work smoothly on both desktop and mobile devices and have a modern design. The website should offer a platform where users can easily register, manage their accounts, deposit and withdraw funds, and buy and sell bitcoin (tokens). The website should be able to display current market data, charts, analysis and news and offer users different trading strategies. The website must comply with the highest standards in terms of security and protect users' personal and financial information. The website must have SSL cert...

I need to develop a robust and reliable Bill Payment and Airtime Recharge system that integrates multiple payment methods and includes a user registration and login feature. Features should include: - A user interface for registration and login. - Support for debit/credit card payments, e-Wallet transactions, and bank transfers. The ideal developer for this project should possess: - Experience in designing secure login systems. - Excellent knowledge of integrating multiple payment options. - Proven experience in developing similar systems. - Attention to detail to ensure every transaction runs as smoothly as possible. Take up the challenge to help in streamlining how people pay bills and recharge airtime, book tickets, et...

...looking for a seasoned web designer and graphic artist to develop an informational website along with an appealing logo. Skills & Requirements: - Strong background in web design and graphic design - Experience in creating logos - Solid understanding of website navigation and aesthetics Job Details: - You will need to create a streamlined and user-friendly website layout focusing on providing information about my business. - The website should include sections such as contact and location details, services, appointments, home page, and pricing. - As for the logo, it should be simple yet intriguing, able to convey the ethos of my business. - I will provide the content for the website. So, your main task would be focused more on the design aspect. ...

I'm looking for a skilled Android app developer to create a beverage vending machine system with a backend web application. The system should be capable of providing a seamless experience for customers, ensuring convenience and efficiency in the beverage ordering process. Key Features: - The Android app will need to include the following functionalities: - Ordering beverages: The app should allow users to browse through a selection of beverages and place orders. - Payment processing: The app should offer a secure and user-friendly payment gateway for transactions. - Brewsing: An additional feature that enables users to brew their own beverages in the vending machine. - The payment processing system sh...

I'm in need of an expert to develop a community-based website that promotes local businesses. The site will also integrate e-commerce functionalities. Key Features: - The primary purpose of the platform is to allow local businesses to showcase and promote their products. This will involve product listings, a shopping cart, and a checkout feature. - Additionally, users should be able to leave reviews and ratings on the products they purchase. - The ideal candidate will also incorporate a referral system that rewards current members who bring in new ones. E-commerce & Payment Gateway: - The platform should support credit/debit card transactions, PayPal, bank transfers, and Remitly. - The secure handling of these pa...

I'm seeking a data analyst to help with processing and analyzing financial data. Key Responsibilities: - Your main objective will be to identify significant patterns and trends within the provided financial data. - I need you to provide a comprehensive, written analysis of these patterns, along with the necessary context for a non-specialist to understand. Ideal Candidate: - Proficient in financial data analysis. - Previous experience in identifying financial trends and patterns. - Skilled enough to produce comprehensive written reports. - Familiar with common tools used for financial data analysis. This case will measure your analytical skills, your ability to use Excel/Google Sheets and also give you a glimps...

I'm in need of a skilled developer to create an addon that will facilitate the synchronization of various data between Loyverse and Odoo 17. Key Requirements: - Synchronize Products, Invoices, Credit notes, Payment In, and Payment Out data from Loyverse with Odoo 17. - The synchronization should be manually initiated, meaning there is no requirement for automation or scheduled synchronization. Additional Details: - The task will include working with the Loyverse access token to effectively extract data from the POS. - The implementation should take into account potential data duplication and handle it appropriately, either by selecting a specific period or checking for duplicate records. Ideal Candidate: - Proficient in both Loyverse and Odoo 17. ...

...online platform where users can exchange services using a credit system, without direct monetary transactions, similar to the model used by >>> <<< Main Features User Registration and Login: Users can register and create a profile. Secure authentication and password recovery options. Personal Dashboard: Each user has access to a personal dashboard where they can manage their offered services, view requested services, and check their credit balance. Intern Credit point System: Users earn credits by offering services and spend credits to request services. Implement a system for purchasing additional credits. Search and Filter System: Users can search for services based on categories, location,...

I'm seeking an experienced ghostwriter to help bring to life an engaging work of fiction, specifically in the romance genre, targeting the young adult audience. - The ideal candidate should have: - Proven experience in ghostwriting, especially in the field of young adult romantic fiction. - An understanding of the young adult romantic genre and its current market trends. - Strong storytelling abilities to craft a compelling romantic narrative. - Ability to handle character development, plot creation, pacing, and dialogue. This project offers an excellent opportunity for writers with a passion for romance and understanding of the young adult demographic. If you can deliver a compelling narrative that resonates w...

I'm seeking a web developer to create a fully functional e-commerce platform for my jewellery brand. My main focus is on having a website that can handle online transactions seamlessly. Key Responsibilities: - Develop an e-commerce website that is visually appealing and user-friendly, with a focus on mobile responsiveness. - Integrate Credit card and Bank transfer as the primary payment methods. - Ensure the website is secure and has SSL certification. - Implement a smooth checkout process for customers. The ideal candidate should have: - Extensive experience in developing e-commerce sites, preferably with jewellery or luxury brands. - Proficiency in payment gateway integration, particularly Credit card and Bank transfer. - ...

I'm looking for an experienced credit repair specialist to help me resolve my credit issues. Key Points: - Issues: Specifically, I'm trying to address late payments and collections on my credit report. - Previous Attempts: I've previously used credit repair services, with limited success. - Expectations: My primary goal is to improve my credit score. Ideal Candidate: - Proven Track Record: I'm looking for someone with a strong track record of successfully resolving late payment and collection issues for clients. - Industry Knowledge: A comprehensive understanding of credit repair laws and regulations is a must. - Communication Skills: I want to be kept informed throughout the p...

I'm seeking a professional who can assist me with removing credit card debt collections that have already been reported but not paid on my credit report. The ideal freelancer should: - Have a proven track record and experience in credit repair and debt collection - Be familiar with the Fair Credit Reporting Act and other relevant laws and regulations - Be able to effectively communicate with creditors and navigate the credit dispute process I didn't respond to a question about how to handle the removal process, but I'm open to negotiation with creditors directly and settling the debt for a lesser amount. If you have experience with these approaches, that's a plus. ...

...need of a skilled ghostwriter to cover a broad spectrum of content for my LinkedIn profile. The principal objective is to establish professional credibility, promote my personal brand, and to share informative industry-specific insights. The specially crafted content must resonate with two key audience groups: - Fellow industry professionals - Potential clients or customers The main content areas should focus on: - The latest trends and insights within the industry - Helpful professional development tips - Inspirational success stories and case studies Ideal candidates should have proven experience in professional ghostwriting, a strong understanding of personal branding, and a knack for capturing and maintaining the interest ...

Freelancer Opportunity: HDFC BANK Selling Credit Card Project

As a small business owner, I am seeking a design-savvy freelancer to develop an engaging ecommerce website for my store, which sells undisclosed products. The project encompasses: a) Website Design: - A functional and user-friendly interface that suits my brand and attracts customers. I need advice on making the most effective color choices to enhance the user experience. b) Payment Integration: - The comfort and convenience of my customers is a top priority, so the integration of multiple payment methods, namely Credit/Debit Cards and PayPal is non-negotiable. Desired Freelancer Skills/Experience: - Web development - Payment gateway integration - Solid understanding of color psychology and its role in UX design - Prior experi...

...looking to hire an experienced credit repair sales agent to offer specialized services in credit analysis and dispute resolution. The main objective is to effectively remove negative items from our clients' credit report, who primarily consist of individuals with poor credit. The ideal candidate should have: - Significant experience or expertise in credit repair sales. - Proven track record in credit analysis and dispute resolution. - Enhance our commitment to helping individuals improve their credit scores. - Excellent negotiation and communication skills is a must. - A deeper understanding of financial regulations and principles. This engagement targets to drive our mission to...

I need a highly professional, yet user-friendly e-commerce website developed using Magento open source, integrated with a mobile application built with Kotlin for Android and Swift for iOS. Key Aspects: - The main goal of this website and app is to sell physical products such as clothing, electronics and accessories online. - Both platforms must accept a variety of payment methods, including credit cards and PayPal, while also offering a cash on delivery option. Ideal Freelancer: - Extensive experience with Magento open source for e-commerce websites. - Proven proficiency in Kotlin for Android and Swift for iOS mobile app development. - Familiarity with incorporating diverse payment gateways. Your bid should clearly outline estimated timelines...

I need a professional with in-depth experience in AWS, who can help with my startup. By helping me obtain the $5,000 AWS credit, we can kickstart the project and scale it effectively. Key Responsibilities: - Assist in determining the best AWS services for our startup’s needs - Help in applying for the $5,000 AWS credit - Provide guidance on how to utilize the credit effectively - Ensure that the AWS setup is secure and scalable Ideal Skills and Experience: - Proven experience in working with AWS services, especially in a startup environment - Strong understanding of security and scalability measures in AWS - Previous experience in applying for and utilizing AWS credits is a plus - Good communication skills to explain c...