Based on sales for the week ending April 3, 2011

16. Half Broke Horses
Jeannette Walls, Scribner, $15, 9781416586296

17. My Name Is Mary Sutter
Robin Oliveira, Penguin, $15, 9780143119135

18. The Three Weissmanns of Westport
Cathleen Schine, Picador, $14, 9780312680527

19. Solar
Ian McEwan, Anchor, $15, 9780307739537

20. The Solitude of Prime Numbers
Paolo Giordano, Penguin, $15, 9780143118596

21. The Girl With the Dragon Tattoo
Stieg Larsson, Vintage, $14.95, 9780307454546

22. True Grit
Charles Portis, Overlook, $14.95, 9781590204597

23. Sarah's Key
Tatiana De Rosnay, St. Martin's, $13.95, 9780312370848

24. Let the Great World Spin
Colum McCann, Random House, $15, 9780812973990

25. The Girl Who Played With Fire
Stieg Larsson, Vintage, $15.95, 9780307454553

26. Lord of Misrule
Jaimy Gordon, Vintage, $15, 9780307946737

27. The Sweetness at the Bottom of the Pie
Alan Bradley, Bantam, $15, 9780385343497

28. The Invisible Bridge
Julie Orringer, Vintage, $15.95, 9781400034376

29. The Lacuna
Barbara Kingsolver, Harper Perennial, $16.99, 9780060852580

30. The Forgotten Garden
Kate Morton, Washington Square Press, $15, 9781416550556

31. Anthill
Edward Osborne Wilson, Norton, $14.95, 9780393339703

32. The Finkler Question
Howard Jacobson, Bloomsbury, $15, 9781608196111

33. The Mapping of Love and Death
Jacqueline Winspear, Harper Perennial, $14.99, 9780061727689

34. Heart of the Matter
Emily Giffin, St. Martin's, $14.99, 9780312554170

35. The Elegance of the Hedgehog
Muriel Barbery, Europa Editions, $15, 9781933372600

36. The Lotus Eaters
Tatjana Soli, St. Martin's, $14.99, 9780312674441

37. Angelology
Danielle Trussoni, Penguin, $16, 9780143118466

38. The Windup Girl
Paolo Bacigalupi, Night Shade, $14.95, 9781597801584

39. The Great Gatsby
F. Scott Fitzgerald, Scribner, $14, 9780743273565

40. Remarkable Creatures
Tracy Chevalier, Plume, $15, 9780452296725

41. House Rules
Jodi Picoult, Washington Square Press, $16, 9780743296441

42. The Ice Princess
Camilla Lackberg, Free Press, $15, 9781451621747

43. A Gate at the Stairs
Lorrie Moore, Vintage, $15, 9780375708466

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

45. The Surrendered
Chang-Rae Lee, Riverhead, $16, 9781594485015

46. Never Let Me Go
Kazuo Ishiguro, Vintage, $15, 9780307740991

47. Parrot and Olivier in America
Peter Carey, Vintage, $15.95, 9780307476012

48. The Island
Elin Hilderbrand, Reagan Arthur Books, $14.99, 9780316043885

49. Maisie Dobbs
Jacqueline Winspear, Penguin, $15, 9780142004333

50. Wench
Dolen Perkins-Valdez, Amistad, $14.99, 9780061706561