This book is a guide to the TypeScript language that starts with basic concepts, and then builds on this knowledge to introduce more advanced language features and frameworks. No prior knowledge of JavaScript is required, although some prior programming skill is assumed. If you are aiming to learn TypeScript, this book will give you all of the necessary knowledge and skills to tackle any TypeScript project. If you are already an experienced JavaScript or TypeScript developer, then this book will take your skills to the next level. You will learn how to use TypeScript with a multitude of modern frameworks, and choose the best framework for your project requirements. You will investigate techniques for test-driven development, explore industry standard design patterns, and learn how to put together a full production-ready TypeScript application.