Karen Armstrong is a very interesting woman — she calls herself a "freelance monotheist." She spent seven yeras as a catholic num, but eventually left, and has taught on a number of topics, including Judaism and Islam.
I read her monograph Islam maybe three years ago — a very interesting, but brief and readable introduction at 200 pages.
This book, A History of God, chronicles the history of the three major monotheistic religions: Judaism, Christianity, and Islam — goes through the similar origins, points of divergence, and parallel trends.
I found the idea of the book super-compelling, but the content was tough for me. Pretty deep and esoteric theology. I’m going to wait for a bit, then try to read her more recent book, The Battle for God — a look at the fundamentalism that has hijacked each of these three religions. Hopefully it’ll be a little bit easier for me to read.

Some followup thoughts on my SOPA post
Feb 3, 23:21 › Travis: Man, SOPA and PIPA just drive me crazy. I am shocked Jan 11, 17:22 › John Stack: Have you considered #OPEN? Personally, it is as far Jan 11, 16:51 › Brad Feld: Fantastic John. I couldn't have said it better myself Jan 10, 15:34 › Robert Kaiser: "What I think we really need to figure out is how