- Peculiar Stories Behind Raining Cats and Dogs and Other IdiomsArnold Ringstad, Dan McGeehan
- Shocking Stories Behind Lightning in a Bottle and Other IdiomsArnold Ringstad, Dan McGeehan
- Weird-but-true facts about inventionsArnold Ringstad
- Over-the-Top Histories of Chew the Scenery and Other IdiomsArnold Ringstad, Dan McGeehan
- The Compelling Histories Of Long Arm Of The Law And Other IdiomsArnold Ringstad
- LynxArnold Ringstad
- True stories of animal odditiesArnold Ringstad
- Intriguing Sources of Hold Your Horses and Other IdiomsArnold Ringstad, Dan McGeehan
- Rain Forest HabitatsArnold Ringstad
- World War II weaponsArnold Ringstad
