A smorgasbord of illustrations from the book
(Click the image for a larger view)
English Medieval Farmers sowing and reaping. Courtesy: English Heritage
Temperature curve from various sources for the past 1000 years. Courtesy: National Academy of Sciences Press
Masked men paddle a double-hulled Polynesian canoe. We don’t know exactly what
oceangoing canoes look like, but they were larger versions of this basic design. Courtesy: Bettman/Corbis
Mande hunter from West Africa as a supernatural being. Courtesy: Columbia University Press