Essential Software Design Patterns for JavaScript Developers is a practical guide that breaks down the most common design patterns used in software development into clear, everyday language. In this book, you'll learn about patterns like Singleton, Factory, Prototype, Adapter, Facade, Decorator, Proxy, Observer, Strategy, Command, State, and Mediator-all explained with simple examples and real JavaScript code. Whether you're a beginner or a seasoned developer, this guide will help you understand how to write cleaner, more maintainable code by using proven techniques. With easy-to-follow explanations, diagrams, and practical examples, this book shows you how to solve common coding challenges and improve your application architecture without all the extra jargon.