I appreciated his Buddhism Without Belief and read it a few times. It's a manifesto for people who don't feel like adding in weird entities to their belief system and still be a Buddhist. I reread Alone With Others recently enough; It is a synthesis of modern thought, including Hegel, with Buddhism. I was eying Living With The Devil yesterday, I'm going to reread that soon. And his latest book is another good read, Confessions of an Atheist Buddhist. He's written also an interesting book about Buddhist movements, called Awakening Of The West. Faith in Doubt is an early memoir, probably encompassed in his last memoir, but maybe more detail about his break with the Tibetans because he's not feeling reincarnation. He also has a translation of the Bodhicaryavatara, and Song of the Profound View by Rabten, Geshé. There are other books, but I haven't read them.
Thank you for the amazing unique voice in Buddhist writing!