GULLIVER OF MARS or Lieut. Gulliver Jones: His Vacation is a novel by English writer Edwin Lester Arnold, combining elements of both fantasy and science fiction. It was first published in 1905 by S.C. Brown, Langham & Co. When first published “Gulliver” was spelled “Gullivar.” For this edition, the spelling Gulliver has been used. Its lukewarm reception led Arnold to stop writing fiction. It has since become his best-known work, and is considered very important in the development of 20th century science fiction in that it is a precursor and likely inspiration to the Edgar Rice Burroughs's classic A Princess of Mars (which spawned the planetary romance aka 'sword and planet' genre. Ace Books reprinted Arnold's novel in paperback in 1964, retitling it Gulliver of Mars. A more recent Bison Books edition (2003) was issued as Gullivar of Mars, adapting the Ace title to Arnold's spelling.