Sneakers are no longer just for athletes and joggers. The footwear is popping up on celebrities, on runways, and in high-end stores. So how did a casual footwear piece turn into a multi-billion-dollar-a-year industry? That is exactly what Howie Khan and Rodrigo Corral explore in their new book, "Sneakers: The Book." Kahn and Corral join Cheddar to explain the designs and marketing that drive certain sneakers forward. The pair dive into the contents of the book, giving us a sneak peak at the different celebrities and star athletes who were interviewed for its pages.