Families who loved Free the Worms! by Nancy Krulik often look for books with a similar feel. These 20 recommendations were selected for their similarity in style, theme, and reading level.

Reach for this book when your child starts noticing the smaller creatures in their world or expresses a budding sense of justice regarding how living things are treated. Part of the popular Katie Kazoo, Switcheroo series, this story finds Katie magically transformed into a worm just as her class begins a science project involving them. It is an ideal choice for children navigating school-day social dynamics or those who need a gentle nudge toward empathy for the environment. Through Katie's unique perspective, readers explore themes of bravery and standing up for those who cannot speak for themselves. The story is perfectly paced for the 7 to 10 age range, using humor and a touch of fantasy to make lessons about kindness feel organic rather than preachy. It helps children realize that even the smallest beings deserve respect and that one person's actions can truly make a difference in their community.