The Essential Parenting Guide-NOW COMPLETELY UPDATED AND EXPANDED! In 1982, child development experts Linda Acredolo, Ph.D., and Susan Goodwyn, Ph.D., discovere
A guide for hearing parents demonstrates how they can teach their hearing infants to communicate with simple sign language gestures before they can speak.
The Essential Parenting Guide- NOW COMPLETELY UPDATED AND EXPANDED! In 1982, child development experts Linda Acredolo, Ph. D., and Susan Goodwyn, Ph. D., discov
In their first three years of life, babies face the most complex learning endeavor they will ever undertake as human beings: They learn to talk. Now, as researc