Twenty-three Years, by Iranian thinker Ali Dashti, is one of my favorite lives of Muhammad. Written by an Iranian Muslim who had a critical and questioning mind, I am happy to share this link to a PDF of the book which I have found online:
Well, well. What can one say about Jay Smith? He's....a special fellow!
In this great video he gives us a great lecture summarizing the latest research about controversial topics: did Muhammad exist? Was Petra, not Mecca, the original qibla. Did Abd al Malik invent Muhammad? Why did the earliest mosques not face Arabia at all? How is it that sections of the Qur'an have been found that predate the alleged life of Muhammad?