Designing Brand Identity
The Brand Gap

Both are in nearly mint condition, and are great reads for anyone interested in design. Designing Brand Identity is a large hardcover that also happens to be a good coffee table book. Both for $10 obo.

http://www.amazon.com/Designing-Brand-Identity-Essential-Branding/dp/0470401427/ref=sr_1_2?ie=UTF8&qid=1371164992&sr=8-2&keywords=designing+brand+identity