My 2 1/2 year old daughter loves these puzzles. When she was just 1 1/2, the 'kid's gym' that we go to had a varitey of these sound puzzles and she went nuts. They are such a great learning tool. Especially the numbers, ABC's and the USA map. I bought 5 of these puzzles for her for CHRISTmas and sadly...only one worked. I contacted customer service at Christainbook.com at the end of January and they we more than accommodating. They sent replacement puzzles without having the defective ones back first. The new ones arrived in short order and are GREAT! My daughter is learning the USA map now and it's amazing. I would recommend these products to anyone with a child who is eager to learn and wants to be challenged.