This series has been an incredible blessing to our family.  Our youngest child had a series of health issues that caused her doctors to label her with an IQ of under 80 (profoundly disabled).  They said she'd never communicate - WRONG!  By 11 months she had 18 signs.  By 18 months she had over 300 and knew ALL the letters of the alphabet by sight, sound and sign - upper and lower case.  Now, at 5, she has over 800 signs in her vocabulary, cognitive testing well over expectations for her age level, and is speaking at age level.  Her communication skills are above… read full review »