Skateboarding isn’t just a recreational activity, but a professional sport, lifestyle, art form, and cultural phenomenon. The striking book Four Wheels and a Board: The Smithsonian History of Skateboarding captures its spirited history, iconic skateboarders, diverse community, and the palpable passion of the people who love it. Betsy Gordon, one of the authors of Four Wheels and a Board, will sign purchased copies of the book.