Based on sales for the week ending May 19, 2013

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

17. City of Women
David R. Gillham, Berkley, $16, 9780425252963

18. World War Z
Max Brooks, Broadway, $14.95, 9780770437411

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

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

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

22. Live by Night
Dennis Lehane, Morrow , $16.99, 9780062197757

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

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

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

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

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

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

29. The Prisoner of Heaven
Carlos Ruiz Zafón, Harper Perennial, $14.99, 9780062206299

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

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

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

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

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

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

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

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

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

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

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

41. The Revised Fundamentals of Caregiving
Jonathan Evison, Algonquin , $14.95, 9781616203153

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

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

44. Last Friends
Jane Gardam, Europa Editions, $16, 9781609450939

45. The Next Best Thing
Jennifer Weiner, Washington Square Press, $16, 9781451617764

46. 1Q84
Haruki Murakami, Vintage, $16.95, 9780307476463

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

48. Stag's Leap
Sharon Olds, Knopf, $16.95, 9780375712258

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

50. His Majesty's Hope
Susan Elia MacNeal, Bantam, $15, 9780345536730