- HörbuchButterfliesJason Cooper
- HörbuchSoundJason Cooper
- HörbuchMoney Through the AgesJason Cooper
- HörbuchMagnetsJason Cooper
- HörbuchAround the World with MoneyJason Cooper
- HörbuchPaying without MoneyJason Cooper
- HörbuchHow Coins and Bills are MadeJason Cooper
- HörbuchAmerican Coins and BillsJason Cooper
- HörbuchAntsJason Cooper
- HörbuchScience SecretsJason Cooper
- HörbuchKeeping Money SafeJason Cooper
- HörbuchValley ForgeJason Cooper
- HörbuchHistoric BostonJason Cooper
- HörbuchLoggerhead TurtlesJason Cooper
- HörbuchMount VernonJason Cooper
- HörbuchGettysburgJason Cooper
- HörbuchVietnam Veterans MemorialJason Cooper
- HörbuchUS TreasuryJason Cooper
- HörbuchLife Cycle of a BullfrogJason Cooper