The Great Courses
2017
- The World's Greatest Geological Wonders: 36 Spectacular Sites (in progress)
- Great World Religions: Islam
- The Power of Mathematical Visualization
- Geometry: An Interactive Journey to Mastery (in progress)
- Life Lessons from the Great Books (in progress)
2016
- The Guide to Essential Italy
- The Great Tours: Experiencing Medieval Europe
- Experiencing America: A Smithsonian Tour Through History
2015