Fighting for Their Country: Minorities at War: Minority Soldiers Fighting in the American Revolution
Westward Expansion: America's Push to the Pacific: The Gold Rush
Muslims in America: Examining the Facts
Women in Science: Chien-Shiung Wu: Nuclear Physicist
The Grand Canyon: An Encyclopedia of Geography, History, and Culture
Primary Sources of Westward Expansion: Lewis and Clark and Exploring the Louisiana Purchase
Great Discoveries in Science: Vaccination
Race in America: What Are Race and Racism?
Viewpoints on Modern World History: The Arms Race and Nuclear Proliferation
Issues That Concern You: Transgender Rights
Protest Movements: Black Lives Matter
Hidden Heroes: Women with Wings: Women Pilots of World War II
National Parks: Everglades National Park
Vaccination and Its Critics: A Documentary and Reference Guide
National Parks: Great Smoky Mountains National Park
War and Religion: An Encyclopedia of Faith and Conflict
National Parks: Yosemite National Park
Race in American Film: Voices and Visions That Shaped a Nation