The Guinness Book of World Records is an annual reference book that features a collection of world records, both human achievements and the extremes of the natural world. It was first published in 1955 and has since become a global phenomenon, inspiring people to attempt record-breaking feats. Each record is verified by a team of adjudicators who ensure that the achievements meet specific criteria. The book covers a wide range of categories, including sports, science, and entertainment, making it a popular source of information and inspiration for record enthusiasts and curious readers alike.