Babysitters Club series by Ann M. Martin

1. Kristy's Great Idea^ <
2. Claudia and the Phantom Phone Calls^ <
3. The Truth About Stacy^ <
4. Mary Ann Saves the Day^ <
5. Dawn and the Impossible Three^ <
6. Kristy's Big Day^ <
7. Claudia and Mean Janine^ <
8. Boy-Crazy Stacy^ <
9. The Ghost at Dawn's House <
10. Logan Likes Mary Ann <
11. Kristy and the Snobs <
12. Claudia and the New Girl <
13. Goodbye, Stacy, Goodbye <
14. Hello, Mallory <
15. Little Miss Stoneybrook...and Dawn <
16. Jessi's Secret Language <
17. Mary Ann's Bad Luck Mystery <
18. Stacy's Mistake <
19. Claudia and the Bad Joke <
20. Kristy and the Walking Disaster <

SUPER-SPECIALS:

1. Babysitters On Board^ <
2. Babysitters' Summer Vacation <
3. Babysitters' Winter Vacation
4. Sea City, Here We Come