If I really wanted to know this much about bookselling and the calculation of prices of rare books I think I would have used another way to find out. This is a book where the author really did write about what he knew, and boy does he know a lot about bookselling.
A bookscout is found dead and Detective Cliff Janeway investigates, not only is he a detective but he's also a book collector of sorts. The investigation leads him into all sorts of trouble and he has to make some choices about his life.
Interesting but after a while I really didn't care.