What age group is Cat in the Hat aimed at?

I'm curious to know, what age group does the classic children's book "Cat in the Hat" primarily cater to? It's a beloved tale with its whimsical illustrations and catchy rhymes, but I'm unsure if it's meant for toddlers, preschoolers, or perhaps even young elementary school students. I'm sure many generations have grown up with this story, but it would be great to get a clearer understanding of its intended audience.