An Introduction to Programming in Go. Caleb Doxsey

Computer programming is the art, craft and science of writing programs which define how computers operate.
This book will teach you how to write computer programs using a programming language designed by Google named Go. Go is a general purpose programming language with advanced features and a clean syntax.
Because of its wide availability on a variety of platforms, its robust well-documented common library, and its focus on good software engineering principles, Go is an ideal language to learn as your first programming language.