The Dark Side of the SunThe Dark Side of the Sun by Terry Pratchett. First impression (1978) of this New English Library paperback edition. Flat signed by Pratchett to title page (his old style signature). No markings. About The Dark Side of the Sun The Dark Side of the Sun is a science fiction novel by Terry Pratchett, first published in 1976. It is similar to the work of Isaac Asimov. According to Don DAmmassa, both this and Pratchetts 1981 sci fi novel Strata spoof parts