Taffy Sinclair
11. Nobody Likes Taffy Sinclair (1991)
Against Taffy Sinclair Club (1976)
Taffy Strikes Again (1984)
Taffy Sinclair, Queen of the Soaps (1985)
Taffy Sinclair Strikes Again (1986)
Blackmailed by Taffy Sinclair (1987)
Down with Taffy Sinclair (1987)
Taffy Sinclair and the Romance Machine Disaster (1987)
Taffy Sinclair Strikes Back (1987)
Taffy Sinclair and the Melanie Makeover (1988)
Taffy Sinclair and the Secret Admirer Epidemic (1988)
Taffy Sinclair Boxed Set (omnibus) (1988)
Taffy Sinclair, Television Star (1988)
Taffy Sinclair- Baby Ashley- and Me (1988)
The Truth About Taffy Sinclair (1988)
Taffy Sinclair Goes to Hollywood (1990)

Fifteen
2. Faking It (Fifteen) (1986)

Twilight
2. The Power (1986)

Fabulous Five
1. Seventh Grade Rumors (1988)
2. The Trouble With Flirting (1988)
3. The Popularity Trap (1988)
4. Her Honor, Katie Shannon (1988)
5. The Bragging War (1989)
6. Parent Game (1989)
7. The Kissing Disaster (1989)
8. The Runaway Crisis (1989)
9. The Boyfriend Dilemma (1989)
10. Playing the Part (1989)
11. Hit and Run (1989)
12. Katie's Dating Tips (1989)
13. The Christmas Countdown (1989)
14. Seventh-grade Menace (1989)
15. Melanie's Identity Crisis (1990)
16. The Hot-line Emergency (1990)
17. Celebrity Auction (1990)
18. Teen Taxi (1990)
19. The Boys-only Club (1990)
20. The Witches of Wakeman (1990)
21. Jana to the Rescue (1990)
22. Melanie's Valentine (1991)
23. Mall Mania (1991)
24. The Great TV Turnoff (1991)
25. Fabulous Five Minus One (1991)
26. Laura's Secret (1991)
27. The Scapegoat (1991)
28. Breaking Up (1991)
29. Melanie Edwards, Super Kisser (1992)
30. Sibling Rivalry (1992)
31. The Fabulous Five Together Again (1992)
32. Class Trip Calamity (1992)

Fabulous Five Super Edition
1. The Fabulous Five in Trouble (1990)
2. Caribbean Adventure (1990)
3. Missing You (1991)
4. Yearbook Memories (1992)

Bone Chillers
1. Beware the Shopping Mall (1994)
2. Back to School (1994)
3. Little Pet Shop of Horrors (1994)
4. Frankenturkey (1994)
5. Strange Brew (1995)
6. Teacher Creature (1995)
7. Frankenturkey 2 (1995)
8. Welcome to Alien Inn (1995)
9. Attack of the Killer Ants (1996)
10. Slime Time (1996)
11. The Return of Gobble-De-Spook (1996)
12. Night of the Living Clay (1996) (with David Bergantino)
13. The Thing Under the Bed (1997)
14. A Terminal Case of the Uglies (1997) (with David Bergantino)
15. Tiki Doll of Doom (1997) (with Michael Burgan)
16. The Queen of the Gargoyles (1997) (with Gene Hult)
17. Why I Quit the Babysitters Club (1997) (with David Bergantino)
18. Blowtorch Psycho.Com (1997) (with Sherry Shahan)
19. Night Squawker (1997) (with Dahlia Kosinski)
20. Scare Bear (1997) (with Gene Hult)
21. The Dog Ate My Homework (1997)
22. Killer Clown of Kings County (1998) (with Daniel Ehrenhaft)
23. Romeo and Ghouliette (1998)
24. Little Pet Shop of Horrors 2 (1999)
The Shopping Spree (1994)
Three to Scare You Silly: Back to School / Little Pet Shop of Horrors / the Shopping Spree (omnibus) (1996)
Toilet Terror (1996) (with Elizabeth Winfrey)

Boy Talk
1. Sneaking Around (1995)
2. Dude in Distress (1995)
3. Too Many Guys (1995)
4. Double Dumped (1995)
5. Tongue-Tied (1995)
6. Too Blue (1996)
7. Crazy in Love (1996)
8. Faking It (1996)
9. Heartbroken (1996)

Just For Girls (1990) (with Bonnie Bryant)