- Krulik, Nancy E, Katie Kazoo, switcheroo, 15
- 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, 04
- Dogs don't have webbed feet, by Nancy Krulik ; illustrated by Sebastien Braun
- Krulik, Nancy E, Katie Kazoo, switcheroo, 7
- Soccer shocker, by Nancy Krulik and Amanda Burwasser ; illustrated by Mike Moran
- Girls don't have cooties, by Nancy Krulik ; illustrated by John & Wendy
- Krulik, Nancy E, Katie Kazoo, switcheroo, 16
- Krulik, Nancy E, Magic bone, 4
- Krulik, Nancy E, Princess Pulverizer, 4
- Who's afraid of fourth grade?, by Nancy Krulik ; illustrated by John & Wendy
- Follow that furball, by Nancy Krulik ; illustrated by Sebastien Braun
- Don't be such a turkey!, by Nancy Krulik ; illustrated by John & Wendy
- Krulik, Nancy E, Katie Kazoo, switcheroo, 03
- Going batty, by Nancy Krulik ; illustrated by John & Wendy
- Two tales, one dog, by Nancy Krulik ; illustrated by Sebastien Braun
- Krulik, Nancy E, Katie Kazoo, switcheroo, 11
- The dragon's tale, Nancy Krulik ; art by Justin Rodrigues
- Krulik, Nancy E, Katie Kazoo, switcheroo, 8
- On thin ice, by Nancy Krulik ; illustrated by John & Wendy
- Open wide, by Nancy Krulik ; illustrated by John & Wendy
- Oh, baby!, by Nancy Krulik ; illustrated by John & Wendy
- Catch that wave, by Nancy Krulik ; illustrated by Sebastien Braun
- Krulik, Nancy E, Katie Kazoo, switcheroo, 23
- Krulik, Nancy E, Katie Kazoo, switcheroo, 6
- Krulik, Nancy E, Katie Kazoo, switcheroo, 32
- Pup art, Nancy Krulik ; illustrated by Sebastien Braun
- Krulik, Nancy E, Princess Pulverizer, 1
- Give a bot a bone, Nancy Krulik and Amanda Burwasser ; Illustrated by Mike Moran
- Don't mess with the ninja puppy!, by Nancy Krulik ; illustrated by Sebastien Braun
- On your mark, get set, laugh!, by Nancy Krulik ; illustrated by John & Wendy
- Out to lunch, by Nancy Krulik ; illustrated by John & Wendy
- Quit buggin' me!, by Nancy Krulik ; art by Ben Balistreri
- Krulik, Nancy E, Katie Kazoo, switcheroo, 2
- Phone-y friends, bNancy Krulik and Amanda Burwasser ; Illustrated by Mike Moran
- Krulik, Nancy E, Katie Kazoo, switcheroo, 20
- Science no fair!, Nancy Krulik and Amanda Burwasser ; illustrated by Mike Moran
- Krulik, Nancy E, Princess Pulverizer, 2
- Krulik, Nancy E, Project droid
- Krulik, Nancy E, Princess Pulverizer, 5
- Doggone it!, by Nancy Krulik ; illustrated by John & Wendy
- My robot ate my homework, by Nancy Krulik and Amanda Burwasser ; illustrated by Mike Moran
- Krulik, Nancy E, Magic bone, #1
- Krulik, Nancy E, Magic bone, 2
- Watch that witch!, Nancy Krulik ; art by Justin Rodrigues ; based on original character designs by Ben Balistreri
- Never box with a kangaroo, by Nancy Krulik ; illustrated by Sebastien Braun
- Krulik, Nancy E, Magic bone
- Krulik, Nancy E, Magic bone, no. 8
- Be careful what you sniff for, by Nancy Krulik ; illustrated by Sebastien Braun