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. It includes contributions from the most influential names in the game, including Rodney Mullen, Tony Hawk, Mimi Knoop, and more. Betsy Gordon and Jane Rogers, authors of Four Wheels and a Board, sign purchased copies of the book at the National Museum of the American Indian.