Based on sales for the week ending July 1, 2012

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

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

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

19. Fahrenheit 451
Ray Bradbury, S&S, $11.99, 9781451673319

20. The Leopard
Jo Nesbø, Vintage, $14.95, 9780307743183

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

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

23. The Perks of Being a Wallflower
Stephen Chbosky, MTV Books, $14, 9780671027346

24. The Dovekeepers
Alice Hoffman, Scribner, $16, 9781451617481

25. The Help
Kathryn Stockett, Berkley, $16, 9780425245132

26. The Drop
Michael Connelly, Grand Central, $14.99, 9781455518982

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

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

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

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

31. Train Dreams
Denis Johnson, Picador, $12, 9781250007650

32. The House at Tyneford
Natasha Solomons, Plume, $15, 9780452297647

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

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

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

36. The American Heiress
Daisy Goodwin, St. Martin's Griffin, $14.99, 9780312658663

37. To Be Sung Underwater
Tom McNeal, Back Bay, $14.99, 9780316127387

38. Abraham Lincoln: Vampire Hunter
Seth Grahame-Smith, Grand Central, $13.99, 9780446563079

39. The Leftovers
Tom Perrotta, St. Martin's Griffin, $14.99, 9780312363550

40. Joy for Beginners
Erica Bauermeister, Berkley, $15, 9780425247426

41. The Sisters Brothers
Patrick DeWitt, Ecco, $14.99, 9780062041289

42. Salvage the Bones
Jesmyn Ward, Bloomsbury, $15, 9781608196265

43. Nightwoods
Charles Frazier, Random House, $16, 9780812978803

44. The Girl Who Kicked the Hornet's Nest
Stieg Larsson, Vintage, $15.95, 9780307454560

45. Hotel on the Corner of Bitter and Sweet
Jamie Ford, Ballantine, $15, 9780345505347

46. The Litigators
John Grisham, Bantam, $16, 9780345536884

47. The Best Exotic Marigold Hotel
Deborah Moggach, Random House, $15, 9780812982428

48. Once Upon a River
Bonnie Jo Campbell, Norton, $15.95, 9780393341775

49. A Game of Thrones
George R.R. Martin, Bantam, $17, 9780553386790

50. Aleph
Paulo Coelho, Vintage, $15, 9780307744579