Long, and Thanks for All the Fish, and Mostly Harmless. This one volume paperback edition comes complete with an unhelpful introduction from the author, a bonus short story, Young Zaphod Plays It Safe, and a special undeleted scene ... This publishing phenomenon began as a radio drama and now exists in a number of wildly contradictory versions (including a TV series, a movie and a towel) - this version, produced by Douglas Adams' original publisher, is, at least, definitively inaccurate.