Not just for babies. For the little girl I babysit that I mentioned in my other post who has speech delays. We have 2 therapists come in to my house, each comes one x a week. I am wondering if you think trying to get her to sign one new word each day is too much? I know that you do not know the little girl so you can;t reallllly say, but in general speaking. She can learn, she is smart, just speech delay and fine motor skill issues.