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The Hunger Games trilogy by Suzanne Collins has surpassed J.K. Rowling's Harry Potter series as the best-selling books of all time—print and e-books combined—on Amazon.com. Via Digital Book World, Sarah Nelson, Amazon.com's editorial director of Books and Kindle, said in a statement, "Interestingly, this series is only three books versus Harry Potter’s seven, and to achieve this result in just four years is a great testament to both the popularity of the work and, we think, the growth in reading digitally during that time. Customers love these books and all three titles are consistently on our Top 10 lists in both print and Kindle formats, and The Hunger Games is also the most-borrowed book in the Kindle Owners’ Lending Library.”

According to a Scholastic statement on sales in the U.S. as of July 19, the publisher "has more than 50 million copies of the original three books in The Hunger Games trilogy in print and digital formats in the U.S. (more than 23 million copies of The Hunger Games; more than 14 million copies of Catching Fire; and more than 13 million copies of Mockingjay)." Comparatively, in July, the Fifty Shades trilogy hit 20 million copies in the U.S.

If you've already read the series—Games, not Shades—here are some suggestions of what to read next.

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