Hopscotch by Julio Cortazar
The story of two young writers whose lives are playing themselves out in Buenos Aires and Paris to the sounds of jazz and brilliant talk, Hopscotch, written in 1963, was the first hypertext novel. Anticipating the age of the web with a non-structure that allows readers to take the chapters in any order they wish, Hopscotch invites them to be the architects of the novel themselves. Soon after publication, the classic work took on a cult status it has never lost, and is celebrated worldwide as one of the greatest landmarks of 20th-Century fiction.