- The early days of space exploration, Daniel E. Harmon. First edition
- What are carbohydrates?, Daniel E. Harmon
- Internship & volunteer opportunities for science and math wizards, Daniel E. Harmon
- Egypt, 1880 to the present : desert of envy, water of life, Daniel E. Harmon ; introductory essay by Richard E. Leakey ; afterword by Deirdre Shields
- Poultry, from the farm to your table, Daniel E. Harmon
- Turkey, Daniel E. Harmon
- Jacques Cartier and the exploration of Canada, Daniel E. Harmon
- Kyrgyzstan, Daniel E. Harmon
- Managing your band, Daniel E. Harmon
- New medicines, issues of approval, access, and product safety, Daniel E. Harmon
- Tsunamis, Daniel E. Harmon
- Robert Peary and the quest for the North Pole, Daniel E. Harmon
- The Environmental Protection Agency, Daniel E. Harmon
- Sudan, 1880 to the present : crossroads of a continent in conflict, Daniel E. Harmon ; introductory essay by Richard E. Leakey ; afterword by Deirdre Shields
- Woodrow Wilson, Daniel E. Harmon ; [Arthur M. Schlesinger, Jr., senior consulting editor]
- Amelia Earhart, aviation pioneer, Daniel E. Harmon
- Lower Atlantic, Florida, Georgia, South Carolina, Daniel E. Harmon
- Careers in mental health, Daniel E. Harmon
- Aaron Rodgers, Super Bowl MVP, Daniel E. Harmon
- What are calories?, Daniel E. Harmon
- First job smarts, Daniel E. Harmon
- Ibn Battuta, the medieval world's greatest traveler throughout Africa, Asia, the Middle East, and Europe, Daniel E. Harmon
- South Carolina, past and present, Daniel E. Harmon
- Frequently asked questions about overscheduling and stress, Daniel E. Harmon
- Chemical and biological weapons, agents of war and terror, Daniel E. Harmon
- Pollution and your lungs, Daniel E. Harmon
- Libya, Daniel E. Harmon
- Jobs in environmental cleanup and emergency hazmat response, Daniel E. Harmon
- La Salle and the exploration of the Mississippi, Daniel E. Harmon
- How to start your own band, Daniel E. Harmon
- Minnesota, past and present, Daniel E. Harmon
- 21st-century surveillance technologies, Daniel E. Harmon
- Careers in the corrections system, Daniel E. Harmon
- Grappling and submission grappling
- The early French explorers of North America, how Giovanni Verrazano, Jacques Cartier, Samuel de Champlain, Étienne Brûlé, and others explored the wilderness and established French settlements, Daniel E. Harmon
- Turkey, Daniel E. Harmon
- First car smarts, Daniel E. Harmon
- Johannes Kepler, Daniel E. Harmon
- Algeria, Daniel E. Harmon
- Explorers of the South Pacific, a thousand years of exploration, from the Polynesians to Captain Cook and beyond, Daniel E. Harmon
- Nigeria, Daniel Harmon
- The global community, techniques and strategies of trade, [by] Daniel E. Harmon
- Producing in theater, Daniel E. Harmon
- What are fats?, Daniel E. Harmon
- Dream jobs in sports media, Daniel E. Harmon
- Leukemia, current and emerging trends in detection and treatment, Daniel E. Harmon
- Andrew Jackson, Daniel E. Harmon ; [Arthur M. Schlesinger, Jr., senior consulting editor]
- Hallucinogens, the dangers of distorted reality, Daniel E. Harmon
- Juan Ponce de Leon and the search for the Fountain of Youth, Dan Harmon