Where do I start? I'd say read the other Amazon reviews on this book but the reviews that are 1 star and 2 stars for a REALISTIC and HONEST opinion on this book.
I attempted the ITIL foundation recently after reading the book cover to cover three times and making notes as well as viewing the online videos ... and I failed the exam with 22/40.
This book is poorly structured with just very basic explanations of the topics. The book is written in a way that the topics don't go into enough depth to fully understand the content required to pass the exam, it's more like someone's study notes. The online course is no better, you get access to slides with someone talking about the topics, the content being not much different to what's in the book. The book is also only about 150 pages in length, so I don't see how this book can be thought of as a complete study guide. The book by itself is not enough to pass the exam (with no prior knowledge of ITIL), used with the online course and some additional reading/research and some prior knowledge of ITIL and you'll probably pass the exam.
I'm also very confused how this book has had so many positive reviews on Amazon. The only reason why I bought this "complete" study kit was because of the high number of positive reviews. I think the honest reviews are the ones with 1 and 2 stars. I'd highly recommend buying another ITIL guide or two than this one, even buying two guides would work out cheaper than this one.