The Go Programming Language Book
So, I've finally received my copy of The Go Programming Language by Alan A. A. Donovan and Brian W. Kernighan!
The book is nicely organized in a way similar to how The C Programming Language was designed and after each chapter there are exercises, so that you could test your skills and understanding on the topic.
Considering the authors' experience and background I have no doubts that this book will quickly become one of my favourite and most valuable resources on Go!