JOHN SOBOL is an author, musician and poet who has performed at festivals and clubs in a dozen countries. His first picture book, Friend or Foe (illustrated by Dasha Tolstikova), was described in Brain Pickings as "a charming modern-day fable." He has toured an acclaimed one-man show called Two Million Years of Technology, and he has written many popular TV shows for children, including Pippi Longstocking and Under the Umbrella Tree. John is a father and a feminist. He lives in Ottawa.

CINDY DERBY is an author, illustrator and puppeteer. Her illustrations for Outside In by Deborah Underwood received a Caldecott Honor and a Golden Kite Honor. She has written and illustrated the highly acclaimed picture books Blurp's Book of Manners, Two Many Birds (Bank Street College of Education Best Children's Books of the Year) and How to Walk an Ant. Her work has received international recognition from France, Brazil and Japan. Cindy lives with her family in San Francisco.