This book has been tested on people who have decent programming knowledge of Java. They picked up going through the chapters with practice, and in the end, they had a thorough knowledge of distributed computing and the design aspects of distributed computing. In this book, you will learn some tricks and tips that you probably didn't know about, or some wise suggestions that will help you along the way.
This book, if followed from cover to cover, will turn you into a proficient distributed system architecture expert. On the other hand, if you already are, it provides a good reference for many different features and techniques that may come in handy from time to time. Finally, this book is also a valid migration guide if you have already experimented with distributed system concepts and you feel overwhelmed by change.