Impact of Crusades on Islamdom

Please tell me about the good or bad impact that the Crusades had on Islamdom. Go into detail about the long-term effects of the crusading movement and how it hindered unification of Islam into a single state.

A book review is embedded.

In his review, Dr. Ferguson addresses the material covered in the work and analyzes the strengths and weaknesses of the author's approach.

Arab Perspectives on the Crusades is given in a comparative Review.

A Comparative Review of "Arab Historians of the Crusades", by Francesco Gabrieli (Berkeley: University of California Press, 1969), xxxvi, 362; and "The Crusades Through Arab Eyes", by Amin Maalouf (New York: Schocken Books, 1985), xvi, 293. Review by Dr. Paul-Thomas Ferguson. In this review, Dr. Ferguson compares and contrasts the focus and approach of these two works in order to provide students and scholars with an understanding of their relative value.