Hello,as the author of the "GD Script" book, I am inviting you to learn advanced use of GD Script. The reader will find a lot of GD Script codes and concepts inside. In the beginning, you will start with concepts from the previous book. For example, button creation. Later on, you will learn more complex parts of code. Book will cover the advanced use of Godot GD Script. Godot is a leading game engine, and the latest stable version in 2019 is 3.1.GD...