Run Smart: Debunking Marathon Myths (Unabridged)
2017
Trivia Quest: Pub Quiz Adventures, Volume 1: The Trivia Quest Series: A Journey of Knowledge (Unabridged)
2023
Trivia Quest: Pub Quiz Adventures, Volume 2 (Unabridged)
2024
Science Trivia Adventures (Unabridged)
2024
Trivia Quest: Family Trivia Adventures - A Journey of Knowledge Series (Unabridged)
2024
Volcanic : Vesuvius in the Age of Revolutions
2023