Yes, definitely have a look at that link! For us, we started signing to her at about 8 months...she signed back at 11 months (I think?) We chose just 3 or 4 to start: More, Eat, Mommy, Daddy was it...we fle tlike those were important words for her to be able to communicate to us. I got a book at Babies R Us, and it had a little flip chart on a magnet that I hung on the fridge, and a quick DVD that I watched. IMO< classes dont work as well as just "doing" the signs..."Oh! Would you like MORE? (sign) Here is some MORE!" (sign) and then I'd give her more. When dh would get home I would say "Daddy's home!" (sign). She knew what the signs meant very quickly...but the end of about 2 weeks, if I signed "Daddy" she'd get all excited and look at the door! I would pick a few key ones, and use them all the time. It really is amazing! My dd was the happiest lo....she never got to the point of getting rrally angry/frustrated, because she could "tell" us what she needed. I'll never foregt one time she signed "drink" and I gave her a cup of water. She took a sip, put it down and signed "milk"...she was about 14 months old...it was AWESOME!!!!