Steve Badillo has coauthored three top-selling skateboarding guides, including "Skateboarder's Start-Up,"" Skateboarding: Book of Tricks,"" "and "Skateboarding: New Levels. "He has worked as a stunt double and actor in numerous commercials and films featuring skateboarding, including "Lords of Dogtown. "He lives in Ventura, California. Doug Werner has coauthored five skateboarding guides and a dozen other sport-instruction guides, including the Start-Up Sports(R) series. He lives in Chula Vista, California.