Essential Library of World War I: Harlem Hellfighters
ISIS: An Introduction and Guide to the Islamic State
Military Technology: Top Secret Clearance: Tanks of World War II Up Close
Frontline Families: World War II: Frontline Soldiers and Their Families
History of American Indians: Exploring Diverse Roots
Decades of the 20th and 21st Centuries: The 1940s
Primary Sources in U.S. History: The Cold War
Essential Library of World War I: World War I Causes
Explorers of the American West: Mapping the World through Primary Documents
Decades of the 20th and 21st Centuries: The 2000s
Primary Sources of the Abolitionist Movement: John Brown and Armed Resistance to Slavery
Decades of the 20th and 21st Centuries: The 1930s
Influential Women: Malala Yousafzai
Timeline Trackers: Westward Expansion: A Timeline History of the Mexican-American War
Tech in the Trenches: Strategic Inventions of the Revolutionary War
Defining Documents in American History: The 1960s (1960-1969)