This Week on the Colbert Report

MONDAY 5/21 -- Michael Pollan and Jared Diamond,
author, "Guns, Germs and Steel"

TUESDAY 5/22 -- John Amaechi -- author, "Man in the Middle"

WEDNESDAY 5/23 -- Bob Deans -- author, "The River Where America Began"

THURSDAY 5/24 -- Jimmy Wales -- founder of Wikipedia