Steve Smith says:
[I recommend] “The Crusades Through Arab Eyes” by Amin Maalouf. This is religious, political, and strategic history as it should be written. It’s a pithy and honest history of a subject that continues to highly relevant. And it can be read in its original French or the very good English translation. It also quotes this gem from 10th c. “Muslim” poet al-Ma’arri:
The inhabitants of the earth are of two sorts: Those with brains, but no religion, And those with religion but no brains.
Little has changed over a thousand years.