Daily Show: Xiuhtezcatl Martinez, co-author of We Rise: The Earth Guardians Guide to Building a Movement that Restores the Planet (Rodale, $22.99, 9781635650679).
Late Show with Stephen Colbert: Graham Norton, author of Holding: A Novel (Atria, $25, 9781501173264). He will also appear on Rachael Ray.
Late Show with Stephen Colbert: Joe Buck, author of Lucky Bastard: My Life, My Dad, and the Things I'm Not Allowed to Say on TV (Dutton, $16, 9781101984581).
Media Heat: Joe Buck on Colbert's Late Show