Baby Sign Language Chart (Printable PDF) Teaching a baby some sign language while they are learning to speak can accelerate the learning process and these babies tend to be less fussy because they can communicate better.
About Baby Signing Time Your child’s first 100 words in signs, songs, and stories! Baby Signing Time helps you break the communication barrier so you can communicate even before your baby learns to talk.
Toddler Language Development: A Comprehensive Guide. Gives many language development milestones separated by age. Helps you understand and be able to recognize signs that indicates a child might need evaluation and intervention.