- AudiolibroJourney into the DeepRebecca L. Johnson
- AudiolibroZombie MakersRebecca L. Johnson
- AudiolibroA Walk in the Tundra, 2nd EditionRebecca L. Johnson
- AudiolibroA Walk in the Boreal Forest, 2nd EditionRebecca L. Johnson
- AudiolibroA Walk in the Deciduous Forest, 2nd EditionRebecca L. Johnson
- AudiolibroNature's NinjaRebecca L. Johnson
- AudiolibroYour Muscular SystemRebecca L. Johnson
- AudiolibroWhen Lunch Fights BackRebecca L. Johnson
- AudiolibroYour Digestive SystemRebecca L. Johnson
- AudiolibroA Walk in the Prairie, 2nd EditionRebecca L. Johnson
- AudiolibroA Walk in the Desert, 2nd EditionRebecca L. Johnson
- AudiolibroMasters of DisguiseRebecca L. Johnson
- AudiolibroA Walk in the Rain Forest, 2nd EditionRebecca L. Johnson