Tuberous Sclerosis Complex-those are some pretty big words, especially for a little kid. But these big words don't have to be so hard to understand. They don't have to be scary or strange-and neither does the condition they name.

Princess Katie the Brave: A Story About Living with TSC introduces young readers to this rare genetic disorder in a very approachable, child-friendly way. The story centers on a young, happy princess, Katie, who has TSC and feels "different" because she goes to the doctor and hospital more often than the other princes and princesses in her...