Adams (Douglas) The Hitch Hiker's Guide to the Galaxy, first edition, signed by the author on upper inner wrapper, The Hitch-Hiker's Guide to the Galaxy LP purchase slip from the publisher loosely inserted, light toning to page margins, pp.57-64 loose, original wrappers, lightly creased, few surface marks to upper wrapper, 8vo, 1979.*** The true first edition of this keystone of 20th century sci-fi literature, very rare in commerce, especially signed. The conceit was originally a radio series, broadcast in 1978 on BBC Radio 4, with Adams later developing the Hitchhiker's Guide into a "trilogy" of five books which sold more than fifteen million copies during his lifetime.Soon after this paperback release, the first hardback edition was released by Arthur Barker Publishers, noted by collectors for its appearance or lack of the "Capricorn One" advert on the rear panel.