Here are the bestselling novels of the decade

See which books reigned supreme each year according to Amazon's Top 100 list archives.

2015: Go Set a Watchman

Final position in Top 100: #6

Top-selling book of the year (if different): First 100 Words by Roger Priddy

Though originally published in 1960, Harper Lee’s classic To Kill a Mockingbird continues to land a spot on the Amazon Top 100 regularly. So it’s no surprise that her landmark sequel – though not without controversy – ended 2015 in the No. 6 position, with generations of Mockingbird fans eager to read more of Lee’s work. Amazon reported Go Set a Watchman was the company’s most pre-ordered book since Harry Potter and the Deathly Hallows was published in 2007. 

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