Although I have been doing PM work for almost 6 years I am using the book. As you get into the materials for PMP you will find there are some areas that you do not have enough dept with from regular day to day experience.
I have had the book for months. I use it along with the PMBOK and The RM Study guide. It is a refreshing read compared to the PMBOK and RM study guide.
For me, it helped me see some of the relationships between processes more easily. It helped me with the inputs and outputs
alot.
I have the entire collection of Head First books and think no matter what your level you can learn something from each of them.
Sal
[ December 04, 2007: Message edited by: Sal DiStefano ]