This morning's Book Report, the weekly AM radio book-related show organized by Windows a bookshop, Monroe, La., has the theme "book group books" and features two author interviews and a discussion of Book Group Expo, which will be held in San Jose, Calif., June 9 and 10:

• Susanne Pari, a Book Group Expo organizer and author of The Fortune Catcher (Edgework Books, $16.95, 9781931223089/1931223084)
• Debra Dean, author of The Madonnas of Leningrad (Harper Perennial, $13.95, 9780060825317/0060825316)

The show airs at 8 a.m. Central Time and can be heard live at thebookreport.net; the archived edition will be posted this afternoon.

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Today on the Martha Stewart Show: chef Jean-Georges Vongerichten, author of Jean-Georges: Cooking At Home with a Four-Star Chef (Broadway, $40, 9780767901550/076790155X).

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Today the Diane Rehm Show talks with Walter Isaacson, author of Einstein: His Life and Universe (S&S, $32, 9780743264730/0743264738).

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Tonight on the Colbert Report: Bob Deans, a national correspondent for Cox Newspapers, talks about his book about Virginia's James River, The River Where America Began: A Journey Along the James (Rowman & Littlefield, $24.95, 9780742551725/0742551725).