Harper Lee, Marie Kondo, and Jeff Kinney topped the print bestseller lists in 2015 for adult fiction, adult nonfiction, and juvenile books, respectively. Here are the 20 bestselling books of the year in each of those categories.

Nielsen BookScan Adult Fiction Top 20

1.Go Set a Watchman
by Harper Lee (Harper)
Unit Sales: 1,599,189
by E.L. James (Vintage)
Unit Sales: 1,406,868
3.The Girl on the Train
by Paula Hawkins (Riverhead)
Unit Sales: 1,345,721
4.All the Light We Cannot See
by Anthony Doerr (Scribner)
Unit Sales: 1,013,616
5.The Martian (trade paper)
by Andy Weir (Broadway)
Unit Sales: 673,041
6.Rogue Lawyer
by John Grisham (Doubleday)
Unit Sales: 576,362
7.To Kill a Mockingbird
by Harper Lee (Grand Central)
Unit Sales: 563,293
8.See Me
by Nicholas Sparks (Grand Central)
Unit Sales: 445,531
9.Gray Mountain
by John Grisham (Dell)
Unit Sales: 365,392
10.The Nightingale
by Kristin Hannah (St. Martin’s)
Unit Sales: 331,384
11.The Bazaar of Bad Dreams
by Stephen King (Scribner)
Unit Sales: 322,298
12.The Girl in the Spider’s Web
by David Lagercrantz (Knopf)
Unit Sales: 305,929
13.The Great Gatsby
by F. Scott Fitzgerald (Scribner)
Unit Sales: 296,641
14.The Alchemist
by Paulo Coelho (HarperOne)
Unit Sales: 285,264
15.Orphan Train
by Christina Baker Kline (Morrow)
Unit Sales: 280,379
16.Finders Keepers
by Stephen King (Scribner)
Unit Sales: 261,589
17.The Husband’s Secret
by Liane Moriarty (Berkley)
Unit Sales: 253,512
18.Cross Justice
by James Patterson (Little, Brown)
Unit Sales: 250,996
19.Fahrenheit 451
by Ray Bradbury (Simon & Schuster)
Unit Sales: 247,900
20.The Martian (mass market movie tie-in)
by Andy Weir (Broadway)
Unit Sales: 246,118