I picked this up at a bookfair, thinking it would help prepare the 1 year old for Halloween, but the 4 year old LOVES it, too, and not a night goes by that he doesn't ask to read it. There are plenty of cute illustrations to talk about, the story is short and cute, and who couldn't love such an adorable mouse? I've ordered a couple more of the "mouse" series, since this one is a huge hit.