Yes, I know that the name of this book is unbearably long but please stay with me as this book as not as it bad as it looks judging by its name
Actually, it's the opposite of a book that aims to teach you the basics of AWS in just a few hundred pages. I read it to brush up my AWS knowledge before coming to interviews. And for this exact purpose this book is just perfect.
It doesn't provide you the same breadth of information as for example Cloud Guru's videos. It gets you straight to the point where you need to be. AWS course on the Cloud Guru platform is worth it only when you can get it for free. Paying for it is pointless in my opinion as it gives you lots of information that you don't even need but doesn't prepare you good enough for the AWS exam.
This book gives you just enough knowledge you need to pass the exam though I would recomend to go through test exams at least a couple of times before going to the real one.
My score is 4/5. This book is relatively new but the pace of change in AWS is so fast that this book is already outdated in some of its aspects.