Book About Muscle Imbalances?

Anybody know of a good book on how to diagnose and treat muscle imbalances? And a good place I can get it at?

I list several on my recommended resources page:

http://www.ericcressey.com/recommendedresources.html

Your best bet would be “Diagnosis and Treatment of Movement Impairment Syndromes.” Tough read if you don’t have much background in this, but you’ll learn a lot.