Knights of the Kitchen Table. (Viking, 1991)
The Not-So-Jolly Roger. (Viking, 1991)
The Good, The Bad, and the Goofy. (Viking, 1992)
Your Mother Was a Neanderthal. (Viking, 1993)
2095. (Viking, 1995)
Tut Tut. (Viking, 1996)
Summer Reading is Killing Me. (Viking, 1998)
It's All Greek to Me. (Viking, 1999)
See You Later, Gladiator. (Viking, 2000)
Sam Samurai. (Viking, 2001)
Hey Kid, Want to Buy a Bridge? (Viking, 2002)
Viking It and Liking It. (Viking, 2002)
Me Oh Maya. (Viking, 2003)
Da Wild, Da Crazy, Da Vinci. (Viking, 2004)
Oh Say, I Can't See. (Viking, 2005)
Marco? Polo! (Viking, 2006)