Based on sales for the week ending January 6, 2013

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

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

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

19. Believing the Lie
Elizabeth George, NAL, $16, 9780451237699

20. Home
Toni Morrison, Vintage, $14, 9780307740915

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

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

23. The Brief Wondrous Life of Oscar Wao
Junot Díaz, Riverhead, $16, 9781594483295

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

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

26. The Best American Short Stories 2012
Tom Perrotta, Heidi Pitlor (Eds.), Mariner, $14.95, 9780547242101

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

28. The Dressmaker
Kate Alcott, Anchor, $15, 9780307948199

29. Waiting for Sunrise
William Boyd, Harper Perennial, $15.99, 9780061876776

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

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

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

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

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

35. City of Thieves
David Benioff, Plume, $15, 9780452295292

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

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

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

39. Sacre Bleu
Christopher Moore, William Morrow, $16.99, 9780061779756

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

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

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

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

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

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

46. The Darlings
Cristina Alger, Penguin, $16, 9780143122753

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

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

49. Unusual Uses for Olive Oil
Alexander McCall Smith, Anchor, $13.95, 9780307279897

50. Reflected in You
Sylvia Day, Berkley, $15, 9780425263914