I am pretty sure that there is a whole article devoted to KIA themes on the Exeter Chess Club web page, but I am too lazy to find it. 🙂 Angus Dunnigton has a good book on it that I own. It's probably reduced on Amazon.
I have the Starting Out : KIA book and it is quite good. However, I only use the KIA against the French, experience has shown me that it is pretty harmless against most other openings.