I picked up this book because of the travel books on offer it had the most information on the particular town I would be visiting on a study placement, Darmstadt in South Hessen. I wasn't sure how much more of Germany I would get to see but I invested in a travel book anyway. I'm glad I did, it's very detailed, very easy to read and includes a number of maps and even a few colour photos. It also includes a bit of history but doesn't force dry statistics on the reader. The general information about living in or visiting Germany was also useful.
My only critisism is that it's neither pocket size or lightweight, but the book's vast detail makes up for that in my opinion.