 Ecological Imperialism by Alfred W. Crosby |  Influenza 1918 by Lynette Iezzoni |  The Speckled Monster by Jennifer Lee Carrell |  Rats, Lice and History by Hans Zinsser |  The Great Influenza by John M. Barry |  Flu by Gina Kolata |  The Code Book by Simon Singh |  A Man on the Moon by Andrew Chaikin |  Cod by Mark Kurlansky |  Salt by Mark Kurlansky |  The Johnstown Flood by David McCullough |  Hackers by Steven Levy |  The Cracking Code Book by Simon Singh |  Changes in the Land by William Cronon |  The Ghost Map: The Story of London's Most Terrifying Epidemic - and How It Changed Science, Cities, and the Modern World by Steven Johnson |  Fingerprints of the Gods by Graham Hancock |  The Children's Blizzard by David Laskin |  Magicians of the Gods by Graham Hancock |  The Great Mortality by John Kelly |  The Demon Under the Microscope by Thomas Hager |