JavaScript Products
JavaScript tools and libraries we use daily in production. Each recommendation comes from real-world experience building scalable applications.

You Don't Know JS: this & Object Prototypes
Explains JavaScript's this binding, prototypes, and object delegation with practical examples.
This book demystified JavaScript's 'this' keyword and prototype system for me. Kyle Simpson's explanation of how 'this' binding works in different contexts is incredibly clear and practical. The way h... Read full review.

You Don't Know JS Yet: Scope & Closures
Deep dive into scope and closures, explaining how JavaScript manages variables, functions, and lexical environments.
This book is a masterpiece of technical writing. Kyle Simpson's explanation of scope and closures in JavaScript is the most comprehensive and clear treatment I've ever read. The way he breaks down lex... Read full review.

You Don't Know JS Yet: Get Started
Modern introduction to JavaScript's core mechanics and mindset to build a strong foundation for the rest of the series.
This book completely changed how I understand JavaScript. Kyle Simpson's approach to explaining the language's core mechanics is brilliant - he doesn't just tell you what to do, he explains why things... Read full review.