The correspondence with the publishers shows the care expended on what was clearly recognised as a major and highly-valued undertaking. Mainly relating to translations and foreign rights. The book was translated into most European languages and into Japanese. An American edition was published in 1970. Darlington's letter of 25 Sep 1970, in answer to a request from director for another book, says that he has in mind 'a sequel to The Evolution of Man and Society, an account of Society as it is. Another to follow (if I survive) would be autobiographically reflective'. The 'sequel' was The Little Universe of Man (1978).