A number of studies have shown that signing with a child at an early age may encourage the development of language, communication and social skills. In addition a child can use sign language to let you know specific thing... more »s. Imagine a baby who can actually let you know if they are hungry or that their diaper is wet. Say It With A Sign Volume 3 introduces 45 new signs in the categories of Animals, Hobbies and Sports, Nature, Thoughts and Feelings, Travel, Colors and Bonus Words. It can be used alone or in conjunction with the other 2 videos to teach a total of 135 signs. Volume 3 also includes a bonus feature of the ASL alphabet. Wordlist for Volume 3: