This morning on Today, Alek Wek showed off Alek: From Sudanese Refugee to International Supermodel (Amistad, $24.99), which pubs today.Wek uses her book to tell her daring story of fleeing on foot the war in southern Sudan and her escape to London, where she rose from young model to supermodel.

The Bob Edwards Show revisited two interviews with authors whose books are now available in paperback:

Psychology professor, cognitive scientist, music fan, and musician Daniel Levitin, author of This is Your Brain on Music: The Science of a Human Obsession (Plume, $15; Penguin Audio CD, $29.95). In its starred review, PW noted “Levitin's snappy prose and relaxed style quickly win one over and will leave readers thinking about the contents of their iPods in an entirely new way.”

Lee Smith and her 10th novel, On Agate Hill (Shannon Ravenel Books, $14.95; Recorded Books CD, $39.99).

On The Diane Rehm Show, reporter and alumnus Alec Klein revisited A Class Apart: Prodigies, Pressure, and Passion Inside One of America's Best High Schools (S&S, $25).

The Brian Lehrer Show hosted journalist David Mendell, author of Obama: From Promise to Power (Amistad, $25.95).

Due to the nature of live programming, scheduling is subject to change. For more detailed information about author appearances on these shows and others as well as listings of book mentions and book reviews, visit TitleSmart.

Booksellers can order these titles through Ingram at ipage.

Authors on the Air is compiled by Diane Patrick. To be included in the compilation, email DPatrickPW@aol.com.