I bought this set for my daughter's 2nd birthday along with some other Hungry Caterpillar things (The Very Hungry Caterpillar Gift Wrapping Paper,Very Hungry Caterpillar Purse, Caterpillar Picture, Zipped, Red,round &The Very Hungry Caterpillar Mini Tote Bag). The Hungry Caterpillar books have been a favourite with all my children and this set is just as wonderful. The illustrations are bright, simple and engaging. Combined with the simple, straight forward text this makes a perfect set for small children. The size of the books is perfect too, easy to handle for small fingers and the thick cardboard pages are very durable. The fact there is a sturdy box to keep these little treasures in just adds to the fun as my daughter enjoys taking them out and putting them back in almost as much as reading them. They're great!