Today:
Fresh Air: Shahan Mufti, author of American Caliph: The True Story of a Muslim Mystic, a Hollywood Epic, and the 1977 Siege of Washington, D.C. (Farrar, Straus & Giroux, $30, 9780374208585).
Tomorrow:
Drew Barrymore Show: Julie Tremaine and Brendan Kirby, authors of Seinfeld: The Official Cookbook (Insight Editions, $34.99, 9781647227647).