“St. Francis of Assisi and the Conversion of the Muslims; With Concise Biography of the Saint,
is published by TAN Books.”
http://www.thepoverello.com/
“There is no doubt that St. Francis of Assisi was a radical Christian – radical in the sense of going down to the very roots or essentials of the faith when it came to imitating Jesus Christ. There are dozens of fine books about the saint. The emphasis in this book about his life is on his attempt to convert to Christianity the powerful sultan of Egypt, al-Malik al-Kamil”
http://www.thepoverello.com/PreachChrist.htm
i meant to give ya a ping on TAN books