Rod Thompson, author of The Black Hills (Berkeley, 978-0425243107), will be on South Dakota Public Radio at 10:05 PT. Listen here.

David Leavitt, author of The Man Who Knew Too Much: Alan Turing and the Invention of the Computer (W.W. Norton, 978-0393329094), will be on NPR's Science Friday.

Due to the nature of live programming, scheduling is subject to change.

Booksellers can order these titles through Ingram at ipage.

To be included in the Authors on the Air compilation, email information--at least TWO days in advance, please--to ghabash@publishersweekly.com.