From the age of about eight or nine I read just about every comic book available in England. At that time my parents owned a newsagent's shop. I took the comics from the shop, read them, and put them back. That went on until I was twelve or thirteen. Then my mother brought in a sort of children's encyclopedia that included sections of folklore. Little folktales. I remember the shock of reading those stories. I could not believe that such wonderful things existed. … throughout your life you have certain literary shocks, and the folktales were my first. From then on I began to collect folklore, folk stories, and mythology. That became my craze.

The Paris Review interview