All Aboard: A Traveling Alphabet by Bill Mayer is an excellent book to help teach your child not only about letters, but also ways to get around. The art is fabulous and reminds me of 1940’s era advertisements (the type George Bailey would decorate his house with). On each page you’re treated to something pertaining to methods of transportation, with a corresponding letter “hidden” within the illustration. For instance, the cover image is A for “All Aboard” and the gangplank of a ship makes up the letter. B is for bridge, arches of a bridge making up the letter. C is for cycle, half of a wheel making up the letter, and so forth. You can have fun with your child finding the letters and talking about how people travel around the world.