Welcome to the book "Angular Reactive Forms". In this book, I explain everything you need to know about reactive forms. With reactive forms, you define the form model directly in the component class. This is an elegant way to deal with form fields that gives you full control over all aspects of reading and updating values and performing all kinds of validations. This way you can easily create and edit dynamic forms from your component class. In this book, I will show you how to create forms, update values, perform validations, display error messages, work with hierarchical groups and form arrays, upload files, preview images, and much more. By the end of this book, you will be confident working with forms in your Angular application and be able to handle all kinds of scenarios. Let us get started.