The ancient Inca civilization is known having a developed economy, but the people didn't use money. In fact, the society didn't have it. This is just one fact presented in this volume, which provides an in-depth look at the Inca economy. The title covers terrace farming, irrigation, livestock, and the role of mit'a labor in ancient Peru. Through the text's coverage of the government's distribution of goods and services, readers will understand why the society is sometimes called a utopia. Written with age-appropriate language and accompanied by highly detailed images, this title makes classroom social studies concepts accessible for readers.