- Krulik, Nancy E, Katie Kazoo, switcheroo, 1
- Katie Kazoo, switcheroo, Nancy Krulik, Books 3 & 4
- The new girl, by Nancy Krulik
- George Brown, class clown., Trouble magnet, by Nancy Krulik
- Krulik, Nancy E, How I survived middle school
- Wet and wild!, by Nancy Krulik
- Grilled cheese and dragons, Nancy Krulik. ; art by Ben Balistreri
- I heard a rumor, by Nancy Krulik
- Don't be such a turkey!, by Nancy Krulik ; illustrated by John & Wendy
- The case of the tortoise in trouble, by Nancy Krulik ; illustrated by Gary LaCoste
- Worse, worser, wurst, Nancy Krulik ; art by Ben Balistreri
- The case of the loose-toothed shark, by Nancy Krulik ; illustrated by Gary LaCoste
- Krulik, Nancy E, How I survived middle school, 2
- Krulik, Nancy E, Katie Kazoo, switcheroo, 15
- Krulik, Nancy E, Katie Kazoo, switcheroo, 34
- Any way you slice it, by Nancy Krulik ; illustrated by John & Wendy
- Love stinks!, by Nancy Krulik ; illustrated by John & Wendy
- Krulik, Nancy E, Katie Kazoo, switcheroo, 5
- Krulik, Nancy E, Katie Kazoo, switcheroo, 4
- Krulik, Nancy E, Katie Kazoo, switcheroo, 7
- Crash!, Nancy Krulik ; illustrated by Louis Thomas
- Krulik, Nancy E, Katie Kazoo, switcheroo, 8
- Krulik, Nancy E, Katie Kazoo, switcheroo, 11
- Dance your pants off!, by Nancy Krulik ; illustrated by Aaron Blecha
- Super burp!, by Nancy Krulik ; illustrated by Aaron Blecha
- Krulik, Nancy E, Princess Pulverizer, 2
- Tip-top tappin' mom, by Nancy Krulik ; illustrated by John & Wendy
- Science no fair!, Nancy Krulik and Amanda Burwasser ; illustrated by Mike Moran
- Hair today, gone tomorrow!, by Nancy Krulik ; illustrated by John & Wendy
- Girls don't have cooties, by Nancy Krulik ; illustrated by John & Wendy
- Krulik, Nancy E, Katie Kazoo, switcheroo, 16
- Can you get an F in lunch?, by Nancy Krulik
- On your mark, get set, laugh!, by Nancy Krulik ; illustrated by John & Wendy
- Anyone but me, by Nancy Krulik ; illustrated by John & Wendy
- Out to lunch, by Nancy Krulik ; illustrated by John & Wendy
- Krulik, Nancy E, Katie Kazoo, switcheroo, 2
- Krulik, Nancy E, Great mathemachicken, 1
- Krulik, Nancy E, Jack gets a clue, 2
- Krulik, Nancy E, Katie Kazoo, switcheroo, 20
- Krulik, Nancy E, How I survived middle school, 3
- Madame president, by Nancy Krulik
- Bad rap, by Nancy Krulik ; illustrated by John & Wendy
- Mulan saves the day, adapted by Nancy E. Krulik ; illustrated by Atelier Philippe Harchy
- Krulik, Nancy E, Katie Kazoo, switcheroo, 19
- Attack of the tighty whities!, by Nancy Krulik
- Krulik, Nancy E, George Brown, class clown, 1
- Krulik, Nancy E, Project droid, 1
- Krulik, Nancy E, How I survived middle school, 4
- Krulik, Nancy E, Kid from Planet Z, 2
- P.S. I really like you, by Nancy Krulik