One of the most original and creative books I've ever come across...I had to buy this one for my own collection! As the title implies, this is a book of alphabet and all of the letters are three-dimensional. However, it's not just simply a book of 26-pages, each with a letter. One of the amazing aspects of the book is the various ways in which some letters morph into others. Very impressive overall. The only potential downside is that I would be worried that little kids, who are still learning the alphabet, are likely to accidentally rip the letters; it's really best for older kids and adults who can appreciate the cleverness of the design. So not sure if it can really be used as a teaching book...though may be with close, direct adult supervision it would be alright.