_Firestorm: The Bombing of Dresden, 1945_ consists of ten chapters (including the retrospect) by ten authorities on various aspects of the Dresden raids, from the post-WWI British military theory which in part justified the raids in the eyes of its planners, to the modern day reconstruction of the city's monuments. I found the multiple perspectives very useful, and a good supplement to the single-author volumes on the topic. For detailed information on the attack itself, read one (or, in the interest of balance, several) of these other volumes. For the larger historical/philosophical/legal aspects of the attack, I'd recommend this book.