This is a good read for those who have had some experience managing projects, or interested in managing IT projects, but have moved beyond the "For dummies" level of reading. Certainly not as complete as the PMI PMBOK, but it's not really geared for that.
I do wish it spent more time discussing alternate, "lighter" project management techniques, however. It felt that they were added in the end as an afterthought, but had little real respect from the author.