This morning on the Today Show: Lidia Matticchio Bastianich, author of Lidia's Italy: 140 Simple and Delicious Recipes from the Ten Places in Italy Lidia Loves Most (Knopf, $35, 9781400040360/1400040361).
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Tomorrow on NPR's Wait Wait Don't Tell Me: James Lipton, author of Inside Inside (Dutton, $27.95, 9780524950346/0525950354).
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Tonight on the Late Show with David Letterman, in a repeat: Al Gore, author of The Assault on Reason (Penguin, $25.95, 9781594201226/1594201226).