Difference between children literature and adult literature?

Children's literature works on two levels. The first, most obvious level, is that of an exciting/interesting/touching story that will appeal to the age of children at which it is aimed.

The second level is actually aimed at the adult who will read it to the child and may make more of the 'touching' category or relate to some kind of universally recognised experience.

The best and most enduring children's literature fulfils both of these criteria and has apt characterisation achieved through conversation and reactions of the characters and a degree of humour and light-heartedness. It may address and resolve issues that concern children.

Adult literature, as opposed to adult pulp fiction, is many layered, weaving stories within stories and having underlying meanings or references. Its characterisation generally includes the thoughts and feelings of the character suggested by actions or spelled out. The story may or may not be easily memorable or even a necessary part of the work. The best literature leaves the reader questioning or rethinking his/her attitudes.