The document lists 21 different themed backpacks available for purchase on a website called Buddy Bags. The backpacks feature designs and characters from popular children's stories, nursery rhymes, and educational topics like seasons, weather, plants, and transportation. Customers can choose from backpacks themed around books and stories like Chicka Chicka Boom Boom, Three Little Kittens, Gingerbread Man, Jack and Jill, and Goodnight Moon.

1. Buddy Bags www.pre-kpages.com

2. #1 Chicka Chicka Boom Boom Backpack

3. #2 Three Little Kittens Backpack

4. #3 Gingerbread Backpack

5. #4 Hey Diddle Diddle Backpack

6. #5 Humpty Dumpty Backpack

7. #6 Jack and Jill Backpack

8. #7 Little Miss Muffet Backpack

9. #8 Brown Bear Backpack

10. #9 Birthday Backpack

11. #10 Clifford Backpack

12. #11 Fire Safety Backpack

13. #12 Goodnight Moon Backpack

14. #13 Wonderful World Backpack

15. #14 I Can Read Backpack

16. #15 Butterfly Backpack

17. #16 No David Backpack

18. #17 Plants Backpack

19. #18 Seasons Backpack

20. #19 Weather Backpack

21. #20 Transportation Backpack

22. #21 Farm Backpack