The Book on the Bookshelf - Henry Petroski

That I really, really liked this book is probably a clue as to how dull a person I really am. This book is a fascinating account not really of the history of books, but of the history of book storage. It goes through the various methods of book storage from scrolls through codices in the Middle Ages, focusing on the creation of actual book "shelves", which for many years consisted on desk space for chained books, and only gradually evolving into the standing bookshelves we take for granted today.