Porpora, a freelance writer, journalist, and editor in the areas of women's and parenting issues and health, offers a guide for parents to teaching an infant to understand beginning sign language. She explains its benefits, learning sign language, how and when to teach it to a baby, its use in tantrum prevention and potty training, connections to learning skills, teaching other caregivers, signing to deaf and hard-of-hearing children, becoming a sign language professional, and classroom use. Annotation ©2011 Book News, Inc., Portland, OR (booknews.com)