We received this set of cards as a Christmas gift for our 2 month old little boy. I was so impressed I bought sets for his baby cousins. Baby Alex loves to look at the cards. We have them set up in his crib, and swap them around with the garden and sea life sets to keep things interesting. He especially loves the monkey card. It always gets a smile. This is excellent for visual stimulation, especially when Mommy or Daddy works with baby.