Book excerpt: When the Spanish arrived in Peru in the 1500s, they found a highly organized and developed society: the Incas. At the head of the Inca Empire was a sophisticated government that ruled more than 10 million citizens. Written to support elementary social studies curriculum, this title covers the structure of the Inca society’s government, including dynasties from 1200 to 1572, important rulers, viceroys, high priests, and governors. Readers also learn about ayllu, laws, and taxes and labor practices. Age-appropriate information and colorful images help readers connect with the material.