The first management book I ever bought myself, and I have often gone back to re-read whole chapters.
This book focuses on "productive projects and teams", and with chapters like "Make a Cheeseburger, Sell a cheeseburger" and "Open Kimono" there is a lot to chuckle about too.
The authors make the point that there is no fail-safe recipe for making a team 'gel' - or is that 'jel'? - but there are a hundred things you can do to ensure it doesn't. This book provides some sound reasoning behind the most frequently-found causes of this.
I would recommend this book to anyone managing teams of people. Particularly those in the IT world.