Books for the record books.
In 2007, Harry Potter and the Deathly Hallows became the fastest-selling book of fiction in 24 hours. Its author is the world’s first billion-dollar author. There are many more fun facts about bookish records—all documented by the Guinness World Records. If you want more trivia, start scrolling.
Related: 10 Weird World Records That’ll Make You Go, “What? Why?”