At the end of the book there is a how to list of some activities kids can do: how to make a Woodstock bird feeder, how to make a Snoopy's doghouse origami; and how to make a Snoopy finger puppet. There are also some facts about Charles Schulz as well as a short history of the Charles M. Schulz Museum and some questions for reflection. There's also a list of places to go for further information. New versions of the book also contain a pull-out poster of the book's cover. Lastly, along the side margins of SNOOPY COWABUNGA! there is a flip book.
SNOOPY COWABUNGA! is not a complete "Peanuts" collection or treasury. Instead, it's a collection of "Peanuts" comics mostly having to do with Snoopy and is aimed at children.