The Phoenix team was able to build javascript features into LiveView that automate the process of changing a user interface on a socket connection. In LiveView, programmers would find a beautiful programming model based on tested concepts, and one that provided javascript infrastructure so developers didn’t need to write their own javascript. This book is for advanced beginners and intermediate programmers who want to build web applications using Phoenix LiveView. In it, you’ll learn the basic abstractions that make LiveView work, and you’ll explore techniques that help you organize your code into layers that make sense. We will try not to bore you with a tedious feature-by-feature march. Instead, we’ll help you grasp LiveView by building a nontrivial application together.