Raymond Queneau’s 100,000,000,000,000 Poems, a collection of 10 14-line sonnets with each page cut into 14 strips to allow readers to arrange them into a astonishing number of variations; Padgett Powell’s The Interrogative Mood, a novel composed entirely of questions; and Geoff Ryman’s 253, which was originally published on the web in the form of a collection of hypertext links.