This was a fantastic book to accompany the PMBOK guide. I have just passed the PMP exam first time - and prior to syllabus change in Aug and this book was extremely useful. The hints, reminders, questions and of course the sample questions in the back (which are also available for free on the web !) were very apt for the actual exam. The actual exam questions were more like those in this book. The best way I'd found was to understand each of the 42 process, what were they trying to achieve and their objectives from the PMBOK guide, learn the inputs, tools & techniques and outputs, then supplement with this book. Yes, there are a couple of errors in the book, but they are easy to find. Also, this version was printed in grey scale. If they had printed some parts of it in colour then it will be easier for the brain to remember some of the images !