I received the Snowtech book set for Christmas and what a great set of books.If you have any kind of interest in the old SnoPro racing series,or just enjoy the old pics of the iron from back then,you should definitely have this on your list of reading materials.I had to pace myself reading them,I could've blown through all 4 books in a week but wanted to enjoy them.The amount of old pictures and articles from each era is very cool and it all ties together nicely.