Learning new facial expressions and mouth movements can be great fun, just ask Sam!Moving the tongue and mouth in different ways is very effective for strengthening facial muscles and aiding speech development, so this simple picture book is a must for anyone worried that a childs speech is showing signs of delay. Children will love copying Sam and Timmy Tongues funny faces and improve their facial strength and dexterity in the process. This book will be an invaluable resource for any parent, teacher or professional looking to help a child with delayed speech.