the final installment, Harry Potter and the Deathly Hallows, sold roughly fifteen million copies worldwide within twenty-four hours of its release. With twelve million books printed in the first US run, it also holds the record for the highest initial print run for any book in history. Key List of best-selling individual books More than 100 million copies Between 50 million and 100 million copies Between 20 million and 50 million copies Between 10 million and 20 million copies List of best-selling book series More than 100 million copies Between 50 million and 100 million copies Between 30 million and 50 million copies Between 20 million and 30 million copies Between 15 million and 20 million copies Notes The Perry Rhodan series has sold more than 1 billion copies, but is not listed because that figure includes magazine sales, not novels alone. Similarly, the Jerry Cotton series has sold over 300 million copies, but most of these were in magazine format. The figures given for some books are for the number printed instead of confirmed sales. List of best-selling regularly updated books More than 100 million copies Between 50 million and 100 million copies Between 30 million and 50 million copies Between 20 million and 30 million copies Between 10 million and 20 million copies See also List of best-selling comic series List of best-selling manga List of best-selling fiction authors Publishers Weekly lists of bestselling novels in the United States List of literary works by number of translations Lists of books References External links The Internet Public Library Frank Luther Mott Collection of American Best Sellers, 1662–1945 at the University of Missouri Best-selling Books Literature records