UFO Chronicles: The Lost Knowledge (Original Recording)
2024
Finding Hitler: Nazis and the Great Escape
2024
UFO Chronicles: The Aliens Arrive (Original Recording)
2024
Inadequate Equilibria: Where and How Civilizations Get Stuck (Unabridged)
2025
UFO Chronicles: Alien Detectives (Original Recording)
2024
UFO Chronicles: Aliens and War (Original Recording)
2024