Guinness World Records, known from its inception in 1955 until 1998 as The Guinness Book of Records and in previous U.S. editions as The Guinness Book of World Records, is a reference book published annually, listing world records and national records, both of human achievements and the extremes of the natural world. The book itself holds a world record, as the best-selling copyrighted book of all time. As of the 2017 edition, it is now in its 63rd year of publication
