This is a set of 47 leather bound field guides. There is one book missing to complete the full set. The book in question is the Hummingbirds of North America Field Guide. As stated earlier they are all bound in genuine leather. The set is part of the collector's lifetime edition. They are all gilded paged. 23 of the 47 have the name plates on the book with previous owner name crossed out in black sharpie. 17 have glue residual from having name plates taken off. 6 have pieces of name plate still stuck on after previous owner tried to remove them.