When reading "Selecting the Pope: Uncovering the Mysteries of Papal Elections" I was very pleased with the length and subject of the book. As the title suggests, this book is about the way in which the Pope is chosen (and the way this process, as well to a lesser extent the Papacy in general, has evovled over many centuries). The book is roughly 200 pages long, which in my opinion is a near-perfect length for a book of this topic. It covers virtually everything you would want to know about the topic, and it does in an easy to understand manner. It has a large number of notes, backing up its claims. As such, it is very accurate in everything that it says.
I would recommend anyone even remotely interested in the Papacy or the Catholic Church to read this book.