I've admired Frank Rich's New York Times columns for some time. He always seems to be able to cut through the hype to get to the facts, and that is what he does excellently in this book. The purpose of the book is to show when the Bush administration knew what about Iraq and how they were spinning what they knew. The best part of the book for graphically showing this is the appendix, which has two parallel timelines. The first is the timeline of intelligence and what the administration knew when, and the second is the public pronouncements of the administration about the war, as well as relevant events and news reports that were known publicly at the time.
It is, of course, pretty damning evidence. I already knew most of it from other reading, but it is so well laid out here that it will be of great value to future historians, as well as those of us interested in current events.