I'm reading Still Here by Ram Dass. His life and books are so inspiring. I'm waiting for Krishna Dass' book to come out. I know he's working on one. The two of them both speak so clearly and realistically about awareness and consciousness.
I'm also a big fan of OSHO's books: Awareness, Love, Freedom, Aloneness, and Intuition are some of my favorites. I love that he contradicts himself to push people's buttons to get them to think for themselves.
Siddhartha, by Hermann Hesse, is also a favorite, of course.