I have a couple of reference books for those interested in room acoustics, sound principles etc. I can recommend.
They have helped me understand everything I need to know and more about audio, rooms, placement, treatment etc. etc. etc.
Great books worth their price for the DIY sections alone. The second book is the one to get if you are wanting the meat and potatoes of what to do for each type of room and the basics underlying the "whys". The first book is more for everything to do with the principles of sound and physics with more of the underlying math and physiological stuff.
and This http://www.amazon.com/Handbook-Sound-Stu...+listening+room