SIGN WITH YOUR BABY

[instructional materials intended to teach adults and children to communicate through the use of signs derived from native sign languages, either alone, simultaneously with spoken language, and to music, such materials consisting of videotapes]

instructional materials intended to teach adults and children to communicate through the use of signs derived from native sign languages, either alone, simultaneously with spoken language, and to music, such materials consisting of posters, books for adults and training manuals