I liked "the Life and Letters of Tofu Roshi" by Susan Moon.
I've reread "Graceful Exits" by Blackman (or snippets from it anyway). On my list is the revised edition of "Autobiography of a Yogi" by P. Yogananda and if, if I can find time somewhere in May, I will hopefully read "Okinawa: History of an Island People" by George Kerr and possibly, "Anatomy of Hatha Yoga" by David Coulter.
For my money as a general rule of thumb, for Asian Culture materials I appreciate anything that Shambhala Pub. puts/or has put out... but second hand will do!