The Lost Man Booker Prize was a special edition of the Man Booker Prize awarded by a public vote in 2010 to a novel from 1970 as the books published in 1970 were not eligible for the Man Booker Prize due to a rules alteration; until 1970 the prize was awarded to books published in the previous year, while from 1971 onwards it was awarded to books published the same year as the award. Wikipedia