On the show, Rick is going to go back and pull from past conversations with authors of successful books. Rick will talk with Phil Gramlich, who put together a collection of stories for “Walt and His Park: The Stories You (Probably) Never Heard”; Ethan Gallogly, who used his time hiking the John Muir Trail as inspiration for his book “The Trail: A Novel”; and the husband-and-wife team of Greg Glasgow and Kathryn Mayer, who wrote “Disneyland on The Mountain: Walt, the Environmentalists; and the Ski Resort That Never Was.”