This document provides an overview of web development. It defines web development as building, creating, and maintaining websites using tools like HTML, CSS, JavaScript, PHP, Java, Python, and Node.js. It classifies web development into frontend and backend development. The frontend is what users interact with, using tools like HTML, CSS, JavaScript, and frameworks like Bootstrap and Angular. The backend is server-side and uses tools like PHP, Java, Python, Node.js, and frameworks like Django and Rails. It describes a full-stack developer as someone proficient in both front-end and back-end development.