Michael Emberley's illustrations, like this one showing an egg traveling through a fallopian tube, make sexual health information accessible to an elementary and middle school audience. But elements of the art, including naked bodies, make some parents uncomfortable. Candlewick Press hide caption

itoggle caption Candlewick Press

Recall and Given recasts the story of David Rector and Roz Alexander-Kasparik as a superhero comic. Roz Alexander-Kasparik hide caption

itoggle caption Roz Alexander-Kasparik

Goodband compares these Knobbed Russets to shrunken heads. Others say potatoes or toads. They're all gnarled and warty and brown, but don't be intimidated: They taste great when ripe. They originated in Sussex, England, in 1819. Melissa Block/NPR hide caption

itoggle caption Melissa Block/NPR