Amazon.com description: Amazon.com Review: Consider the book. Though Goodnight Moon and Finnegans Wake differ considerably in content and intended audience, they do share some basic characteristics. They have pages, they're roughly the same shape, and whether in a bookstore, library, or private home, they are generally stored vertically on shelves. Indeed, this is so much the norm that in these days of high-tech printing presses and chain bookstores, it's easy to believe that the book, like the cockroach, remains much the same as it ever was. But as Henry Petroski makes abundantly clear in Book on the Bookshelf, books as we know them have had a long and complex evolution. Indeed, he takes us from the scroll to the codex to the hand-lettered illuminated texts that were so rare and valuable they were chained to lecterns to prevent theft. Along the way he provides plenty of amusing anecdotes about libraries (according to one possibly apocryphal account, the library at Alexandria borrowed the works of the great Greek authors from Athens, had them copied, and then sent the copies back, keeping the originals), book collectors, and the care of books.

Book-lover though he may be, however, Henry Petroski is, first and foremost, an engineer and so, in the end, it is the evolution of bookshelves even more than of books that fascinates him. Pigeonholes for scrolls, book presses containing thousands of chained volumes, rotating lecterns that allowed scholars to peruse more than one book at a time--these are just a few of the ingenious methods readers have devised over the centuries for storing their books: "in cabinets beneath the desks, on shelves in front of them, in triangular attic-like spaces formed under the back-to-back sloped surfaces of desktops or small tabletop lecterns that rested upon a horizontal surface." Placing books vertically on shelves, spines facing outward, is a fairly recent invention, it would seem. Well written as it is, if Book on the Bookshelf were only about books-as-furniture, it would have little appeal to the general reader. Petroski, however, uses this treatise on design to examine the very human motivations that lie behind it. From the example of Samuel Pepys, who refused to have more titles than his library could hold (about 3,000), to an appendix detailing all the ways people organize their collections (by sentimental value, by size, by color, and by price, to name a few of the more unconventional methods), Petroski peppers his account with enough human interest to keep his audience reading from cover to cover. --Alix Wilber