The Nile: An Encyclopedia of Geography, History, and Culture
National Parks: Great Smoky Mountains National Park
National Parks: Grand Canyon National Park
US Supreme Court Landmark Cases: Marriage Equality: Obergefell v. Hodges
Encyclopedia of American Civil Rights and Liberties
The Holocaust: An Encyclopedia and Document Collection
Collective Biographies: Women Scientists and Inventors
Race in American Film: Voices and Visions That Shaped a Nation
Women in Science: Jane Goodall: Primatologist and UN Messenger of Peace
The Bill of Rights: Freedom of Speech, the Press, and Religion: The First Amendment
Hidden Heroes: The Stonewall Riots: The Fight for LGBT Rights
American Citizenship: Constitutional Rights
US Supreme Court Landmark Cases: Desegregating Schools: Brown v. Board of Education
Vaccines: History, Science, and Issues
National Parks: Yosemite National Park
Special Reports, Set 2: The Gender Wage Gap
The Sea in World History: Exploration, Travel, and Trade
Vaccination and Its Critics: A Documentary and Reference Guide
Defining Moments: The Stonewall Riots