Is your baby hungry or tired? Does she have a tummy ache or does he just need a diaper change? It's easy to know when you and your baby learn to sign together. Studies show that babies who sign develop increased vocabularies, experience less frustration, and begin to speak earlier.These short stories, playful pictures, and clear instructions are practical for parents and fun for older siblings.Let's Sign! is designed to help you more fully enjoy mealtime, playtime, bedtime, and other daily activities with the baby in your life. AUTHOR Kelly Ault is a designer and former managing editor of the Horn Book Guide, a children's book review journal. ILLUSTRATOR Leo Landry is the author and illustrator of Eat Your Peas, Ivy Louise and The Snow Ghosts. For more information, visit http://www.leolandry.com/. Birth-3 years