Web development involves creating and maintaining websites and web applications, including e-commerce sites. It includes: Front-end Development: Designing the user interface with HTML, CSS, and JavaScript. Back-end Development: Managing server-side operations, databases, and APIs using languages like PHP, Python, or Java. Content management systems (CMS) like WordPress, and e-commerce platforms like Shopify, simplify building websites and online stores. They offer templates, plugins, and tools for easy customization and management. Web development aims to create responsive, user-friendly, and secure websites, whether for informational purposes, blogs, or online shopping.