Mysteries of History: Mystery of the Mary Celeste
Viewpoints on Modern World History: AIDS and Other Killer Viruses and Pandemics
Sharing Posts: The Spread of Fake News
World History: The United States and Russia: A Cold and Complex History
A Visual History of the World: A Visual History of the World's Enduring Mysteries
Terrorism in the 21st Century: Causes and Effects: Investigating the Crash of Flight 93
Paranormal Investigations: The Bermuda Triangle, Stonehenge, and Unexplained Places
The Central Intelligence Agency: An Encyclopedia of Covert Ops, Intelligence Gathering, and Spies
9/11 and the War on Terror: A Documentary and Reference Guide
Critical Insights: Conspiracies
End of Days: An Encyclopedia of the Apocalypse in World Religions
Analyzing the Issues: Critical Perspectives on the New Cold War
Climate Change: Examining the Facts
World History: The Mysterious Maya Civilization