Suggested Reading

Harold's Hideaway Thumb by Harriet Sonnenschein, Jurg Obnzt (Illustrator), Jurg Obrist (Illustrator)

David Decides About Thumbsucking - A Story for Children, a Guide for Parents by Susan Heitler P H.D., Paula Singer (Photographer)

Helping the Thumb-Sucking Child: A Practical Guide for Parents by Rosemarie A. Van Norman