Classics of non-fiction - living and vivid memories of one of the greatest scientists of the XX century. James Dewey Watson (born 1928) is an American biologist, Nobel laureate in physiology or medicine (together with Francis Crick and Maurice Wilkins) for discovering the structure of a DNA molecule. The book "Double Helix," which describes the history of this discovery, was first published back in 1968 and has since been consistently included in any "top 10" non-fiction bestsellers. The new translation and the careful work of the scientific editors of the Russian edition made it possible to update this classic book, supplementing it with the necessary comments.