- Buku AudioJourney into the DeepRebecca L. Johnson
- Buku AudioZombie MakersRebecca L. Johnson
- Buku AudioA Walk in the Tundra, 2nd EditionRebecca L. Johnson
- Buku AudioA Walk in the Boreal Forest, 2nd EditionRebecca L. Johnson
- Buku AudioA Walk in the Deciduous Forest, 2nd EditionRebecca L. Johnson
- Buku AudioNature's NinjaRebecca L. Johnson
- Buku AudioWhen Lunch Fights BackRebecca L. Johnson
- Buku AudioYour Muscular SystemRebecca L. Johnson
- Buku AudioYour Digestive SystemRebecca L. Johnson
- Buku AudioA Walk in the Prairie, 2nd EditionRebecca L. Johnson
- Buku AudioA Walk in the Desert, 2nd EditionRebecca L. Johnson
- Buku AudioMasters of DisguiseRebecca L. Johnson
- Buku AudioA Walk in the Rain Forest, 2nd EditionRebecca L. Johnson