This is the most complete book, ever, about Transformers™ - a must-have reference book for all Transformer™ collectors and collectible-toys dealers. An "unauthorized" but ground-breaking look at those wonderful metal and plastic toys of the eighties and nineties that brought joy to millions of children. The author answers the question "What is a Transformer?" ("a toy that through a series of changes can alter its form from a vehicle to a robot") and tells us the history of these figures, from the early Diaclone, Diacrone, and Micronauts of Japan through the emergence of Hasbro's™ Transformer™ creations to the Transmetals™ and Fuzors™ of the late nineties. Over 500 color photographs and a well-researched price guide are included.