High promise, but fairly low delivery. I found this collection of three short books to be fairly average. They provide a cursory, high-level introduction to the topic and give some interesting examples of how machine learning and neural networks are used today, but don't expect anything more than that. Calling it "the ultimate guide" is rather grandiose, and I was left feeling like I hadn't really learnt much at all about how any of this works in practice.
Read it if you know nothing at all about the subject and want to get an understanding of what some of the terms mean and how they are used, but if you feel you already have a fairly good handle on what machine learning is at a high level, this is probably one to skip.