Economics in the 21st Century: Globalization: What It Is and How It Works
The Ancient World: Extraordinary People in Extraordinary Societies
Islam: A Worldwide Encyclopedia
World War I: The Essential Reference Guide
Dictatorship, Fascism, and Totalitarianism
Cause & Effect in History: The September 11 Attacks
Wars That Changed History: 50 of the World's Greatest Conflicts
The World of Ancient Rome: A Daily Life Encyclopedia
Cause & Effect in History: The French Revolution
Gods & Goddesses of Ancient China
Living History: Life During the Renaissance
Feudalism, Monarchies, and Nobility
9/11 and the War on Terror: A Documentary and Reference Guide
Medieval Punishment and Torture