My 9-month-old and I took the Level 1 class (six weekly 45-min sessions), and we loved it!! It's mostly designed for the parents, but my son enjoyed listening to all the fun songs, watching our hand motions, and playing with the other kids. The atmosphere in our session was family-friendly and casual, with lots of opportunities to ask questions and interact with one another. The CD that came with the manual has all the silly songs on it, so we can practice at home. The manual shows pictures for how to do all the signs, but having the instructor there to do the signs in person and correct our hand motions made a huge difference. The instructor, Alison, even showed us how to sign one of our family favorites: The Very Hungry Catterpillar. I am amazed at how many signs I actually learned by the end of 6 weeks. I recommend this for families of babies ages 4-months to 1 1/2 yrs old. We're looking forward to taking Level 2 pretty soon! read more