Jeff Greenfield, author of Then Everything Changed (Putnam, ISBN 978-0399157066), is on The Colbert Report tonight. PW’s review said, “Speculation isn't history, but it's catnip to pundits and journalists like veteran CBS News reporter and commentator Greenfield (The Real Campaign), who can be excused for this romp into what ifs…. In the end, fun but insubstantial.”

The Leonard Lopate Show talks to Edgar-award winning author Edward Dolnick, author of The Clockwork Universe: Isaac Newton, The Royal Society, and the Birth of the Modern World (Harper, ISBN 978-0061719516).

Michael Fazio, author of Concierge Confidential (St. Martin’s, ISBN 978-0312643768), is on Joy Behar.

The Martha Stewart Show features Howard Friedman and Leslie Martin, authors of The Longevity Project (Hudson Street Press, ISBN 978-1594630750).

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 this Authors on the Air compilation, email information to landriani@publishersweekly.com.