Ages 7 years & over. Text in Spanish. Exploring the fascinating trade routes of the American continent, this study covers 600 years of trading history, from the times of bartering to today's global commerce via the Internet, and explores how the act of buying and selling creates a cultural dialogue. It also examines trade itself from various viewpoints, such as the way in which it helped people more easily satisfy their basic needs so that they could develop in other arenas and its affect on communities as a whole and the creation of new jobs.