Based on sales for the week ending May 26, 2013

16. The Dog Stars
Peter Heller, Vintage, $15, 9780307950475

17. Live By Night
Dennis Lehane, Morrow, $16.99, 9780062197757

18. Wolf Hall
Hilary Mantel, Picador, $16, 9780312429980

19. Istanbul Passage
Joseph Kanon, Washington Square Press, $16, 9781439156438

20. Phantom
Jo Nesbø, Vintage, $14.95, 9780307951151

21. A Lady Cyclist's Guide to Kashgar
Suzanne Joinson, Bloomsbury, $16, 9781608198337

22. The Sense of an Ending
Julian Barnes, Vintage, $14.95, 9780307947727

23. Cloud Atlas
David Mitchell, Random House, $15, 9780812984415

24. Rules of Civility
Amor Towles, Penguin, $16, 9780143121169

25. The Night Circus
Erin Morgenstern, Anchor, $15, 9780307744432

26. The Yard
Alex Grecian, Berkley, $16, 9780425261279

27. Orphan Train
Christina Baker Kline, Morrow, $14.99, 9780061950728

28. The Perks of Being a Wallflower
Stephen Chbosky, MTV Books, $14, 9781451696196

29. The Snow Child
Eowyn Ivey, Reagan Arthur/Back Bay Books, $14.99, 9780316175661

30. The Expats
Chris Pavone, Broadway, $15, 9780770435721

31. Fifty Shades of Grey
E.L. James, Vintage, $15.95, 9780345803481

32. The Sandcastle Girls
Chris Bohjalian, Vintage, $15.95, 9780307743916

33. Life of Pi
Yann Martel, Mariner, $15.95, 9780547848419

34. The Black Box
Michael Connelly, Grand Central, $14.99, 9781455526956

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

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

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

38. The Forgotten
David Baldacci, Grand Central , $14.99, 9781455523153

39. A Game of Thrones
George R.R. Martin, Bantam, $18, 9780553386790

40. State of Wonder
Ann Patchett, Harper Perennial, $15.99, 9780062049810

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

42. Beastly Things
Donna Leon, Penguin , $15, 9780143123248

43. Wool
Hugh Howey, S&S, $15, 9781476733951

44. Infinite Jest
David Foster Wallace, Back Bay, $17.99, 9780316066525

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

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

47. Seating Arrangements
Maggie Shipstead, Vintage, $15, 9780307743954

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

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

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