In spite of crusades and skirmishes, forays by pirates, sackings and slave trafficking; in spite of Lepanto and the assault on Vienna, the truth is that with Islam we have always had a fruitful exchange and have entertained, substantially, good relations. A misunderstanding has obscured this truth over time, with frightening results for both parties. This is the original thesis of Franco Cardini. Mario Baudino, La Stampa Franco Cardini weaves the threads of memory and clears away the lies and prejudices. Il Venerdì di Repubblica Franco Cardini’s work is a must read, a rare book that succeeds in synthesising in a precise overall picture the history of the relationship between Christians and Muslims. Medioevo