Based on sales for the week ending December 30, 2012

16. Fifty Shades Darker
E.L. James, Vintage, $15.95, 9780345803498

17. The Art of Fielding
Chad Harbach, Back Bay, $14.99, 9780316126670

18. Fifty Shades Freed
E.L. James, Vintage, $15.95, 9780345803504

19. Billy Lynn's Long Halftime Walk
Ben Fountain, Ecco, $14.99, 9780060885618

20. The Great Gatsby
F.Scott Fitzgerald, Scribner, $15, 9780743273565

21. The Tiger's Wife
Téa Obreht, Random House, $15, 9780385343848

22. The Brief Wondrous Life of Oscar Wao
Junot Diaz, Riverhead, $16, 9781594483295

23. Ready Player One
Ernest Cline, Broadway, $14, 9780307887443

24. World War Z
Max Brooks, Three Rivers, $14.95, 9780307346612

25. The Art of Hearing Heartbeats
Jan-Philipp Sendker, Other Press, $14.95, 9781590514634

26. 11/22/63
Stephen King, Gallery, $19.99, 9781451627299

27. The Cat's Table
Michael Ondaatje, Vintage, $15, 9780307744418

28. The Art of Racing in the Rain
Garth Stein, Harper, $14.99, 9780061537967

29. The Buddha in the Attic
Julie Otsuka, Anchor, $13.95, 9780307744425

30. Lone Wolf
Jodi Picoult, Emily Bestler, $16, 9781439102756

31. Cutting for Stone
Abraham Verghese, Vintage, $15.95, 9780375714368

32. City of Dark Magic
Magnus Flyte, Penguin, $16, 9780143122685

33. Sacre Bleu
Christopher Moore, Morrow, $16.99, 9780061779756

34. A Discovery of Witches
Deborah Harkness, Penguin, $16, 9780143119685

35. Swamplandia!
Karen Russell, Vintage, $14.95, 9780307276681

36. How It All Began
Penelope Lively, Penguin, $16, 9780143122647

37. Caleb's Crossing
Geraldine Brooks, Penguin, $16, 9780143121077

38. Dark Places
Gillian Flynn, Three Rivers, $14, 9780307341570

39. Fall of Giants
Ken Follett, NAL, $25, 9780451232571

40. The Innocent
David Baldacci, Grand Central, $14.99, 9781455519002

41. The Shoemaker's Wife
Adriana Trigiani, Harper, $15.99, 9780061257100

42. Sharp Objects
Gillian Flynn, Three Rivers, $14, 9780307341556

43. The Alchemist
Paulo Coelho, HarperOne, $14.99, 9780061122415

44. Arcadia
Lauren Groff, Hyperion, $15.99, 9781401341909

45. The Keeper of Lost Causes
Jussi Adler-Olsen, Plume, $16, 9780452297906

46. The Orphan Master's Son
Adam Johnson, Random House, $15, 9780812982626

47. A Visit From the Goon Squad
Jennifer Egan, Anchor, $14.95, 9780307477477

48. Bared to You
Sylvia Day, Berkley, $15, 9780425263907

49. The Family Fang
Kevin Wilson, Ecco, $13.99, 9780061579059

50. The Snowman
Jo Nesbø, Vintage, $14.95, 9780307742995