This book is indeed valuable for the PMP test and a fun book compared to all the other boring books on Project Management. I have read quite a number of PM books, and many had reduced my interest in pursuing the PMP. But this book re-energize the idea that PM can be fun and the PMP is just a test you will like. I do recommned reading the same topic in the PMBOK after you have read Head First--First...much more enjoyable and easily understood.