A Guide To The Project Management Body Of Knowledge

It's difficult to “judge” a reference book like the PMBOK. A body of knowledge it is, after all. Reads like a dictionary, but it's still good to have it at your side. Perhaps real-life examples, even from a more general perspective (after all, the PMBOK is not a methodology) would make it a better read in future editions.

If you attempt to obtain one of PMI's certificates, I seriously recommend to read the PMBOK - once, twice or more. It's good to “feel” the book and know where to search, when needed.