The Princess Bride: S. Morgenstern's Classic Tale of True Love and High Adventure, The "Good Parts" Version is a 1973 fantasy romance novel by American writer William Goldman. The book combines elements of comedy, adventure, fantasy, drama, romance, and fairy tale. It is presented as an abridgment of a longer work by the fictional S. Morgenstern, and Goldman's "commentary" asides are constant throughout. It was originally published in the United States by Harcourt Brace, then later by Random House, while in the United Kingdom it was later published by Bloomsbury.
The book was adapted into a 1987 feature film directed by Rob Reiner from a screenplay written by Goldman.
William Goldman said, "I've gotten more responses on The Princess Bride than on everything else I've done put together—all kinds of strange outpouring letters. Something in The Princess Bride affects people."
A segment of the book was published as "Duel Scene" in the anthology The Best of All Possible Worlds, which was edited by Spider Robinson. In 2015, a collection of essays on the novel and the film adaptation was published entitled The Princess Bride and Philosophy.