These cards are fantastic, they are thick card board so much harder wearing than others I've got and the variety of animals is brilliant also, I love that there are some more unusual animals in there aswell as the more common ones - it gives a better view of the variety of the amazing animals out there other than just what you may encounter on a walk to the park or trip to the zoo (and the review moaning about the use of the xolo - can you think of a common x animal?). I think the art work is great aswell even though the colours aren't all true to life but what cartoon pictures are? My 2 1/2 year old son really enjoys them and we often play games with them aswell such as finding which animals live in water? and which animals eat leaves?. Overall I really like these cards and I am back to buy another set as a present, they are great quality and in a decent box that will actually hold them and not squash or tear after a being handled by little hands and they seem to hold his attention longer than others we've got.