An interesting book in that it gives an account of the Crusades using the observations of contemporary Arab chroniclers. It has some flaws, like many history books you need to get a wider context from other writers to compare with opinions the author has but I found it a fascinating, if somewhat brutal and de-romanticised, vision of events. Richard the Lionheart was one of my historical heroes as a young historian so I was really keen to get into this book. It's not all about war either, there's s lot of cultural and economic context covered too. If anything though, I'd like it to go deeper.
It's an old book, I'm sure there are more contemporary books on the subject, but it's well worth a look.