U.S. soldiers and their allies fighting in the Vietnam War faced violence on and off the battlefield and could never be sure who was friendly and who was an enemy. Experience life on the front lines i
Presents an introduction to maps, describing the impact of the computer on the creation of modern maps and covering such topics as digital maps, geographical information systems, virtual environments,
Archaeology reveals the rich history and complex culture of the Aztecs. Journey to the center of this elevated ancient civilization, to a huge oval basin 7,500 feet above sea level, in the Valley of M
From the team who created the award-winning title HOW TO MAKE A UNIVERSE WITH 92 INGREDIENTS, HOW TO CHANGE THE WORLD WITH A BALL OF STRING is a completely unique and imaginative take on history for c
