- Moments of Mindfulness: Find a Little Stillness in a Busy World
- Mindful Thoughts for Walkers: Footnotes on the zen path
- Stars: A Family Guide to the Night Sky
- Pandemic History: From Plague to Spanish Flu Since Today. The Most Complete Description of the Deadlist Epidemics that Shook Our Society and How They Changed the World and the Way We Live in It
- Religion: A Crash Course