About Karen Gravelle Books by Karen Gravelle What's Going on Down There? A Boy's Guide to Growing Up by (author) Karen Gravelle illustrated by Robert Leighton Ages 8 to 12 Grades 3 to 7 The Period Book A Girl's Guide to Growing Up by (author) Karen Gravelle & Jennifer Gravelle illustrated by Debbie Palen Ages 8 to 12 Grades 3 to 7
