Dangerous Visions is an anthology of science fiction short stories edited by American writer Harlan Ellison and illustrated by Leo and Diane Dillon. It was published in 1967 and contained 33 stories, none of which had been previously published.A path-breaking collection, Dangerous Visions helped define the New Wave science fiction movement, particularly in its depiction of sex in science fiction. Writer/editor Al Sarrantonio wrote that Dangerous Visions "almost single-handedly [...] changed the way readers thought about science fiction."Contributors to the volume included 20 authors who had won, or would win, a Hugo, Nebula, World Fantasy, or BSFA award, and 16 with multiple such awards. Ellison introduced the anthology both collectively and individually while authors provided afterwords to their own stories. Source: Wikipedia (en)