On the other side of the time spectrum, the two hottest books related to capitalism that just came out are "The Shock Doctrine: The Rise of Disaster Capitalism" by Naomi Klein and "The Age of Turbulence: Adventures in a New World" by Alan Greenspan. Since these books just came out and are making waves, there's a good chance they might come up in your debate. I'd check out both of them before the debate.