Based on sales for the week ending April 8, 2012

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

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

18. Doc
Mary Doria Russell, Ballantine, $15, 9780812980004

19. Extremely Loud and Incredibly Close
Jonathan Safran Foer, Mariner, $14.95, 9780547735023

20. Clara and Mr. Tiffany
Susan Vreeland, Random House, $15, 9780812980189

21. The Girl With the Dragon Tattoo
Stieg Larsson, Vintage, $15.95, 9780307949493

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

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

24. The Saturday Big Tent Wedding Party
Alexander McCall Smith, Anchor, $14.95, 9780307472984

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

26. Room
Emma Donoghue, Back Bay, $14.99, 9780316098328

27. Major Pettigrew's Last Stand
Helen Simonson, Random House, $15, 9780812981223

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

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

30. A Lesson in Secrets
Jacqueline Winspear, Harper Perennial, $14.99, 9780061727719

31. Dreams of Joy
Lisa See, Random House, $15, 9780812980547

32. To Kill a Mockingbird
Harper Lee, Perennial, $13.99, 9780060935467

33. Before I Go to Sleep
S.J. Watson, Harper, $14.99, 9780062060563

34. Elizabeth I
Margaret George, Penguin, $17, 9780143120445

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

36. Sarah's Key
Tatiana De Rosnay, St. Martin's, $13.99, 9781250004345

37. Horoscopes for the Dead
Billy Collins, Random House, $15, 9780812975628

38. Tinker Tailor Soldier Spy
John le Carré, Penguin, $16, 9780143120933

39. The Story of Beautiful Girl
Rachel Simon, Grand Central, $12, 9780446574457

40. The Forgotten Waltz
Anne Enright, Norton, $15.95, 9780393342581

41. The Lady of the Rivers
Philippa Gregory, Touchstone, $16, 9781416563716

42. Please Look After Mom
Kyung-Sook Shin, Vintage, $14.95, 9780307739513

43. When the Killing's Done
T.C. Boyle, Penguin, $16, 9780143120391

44. The Kitchen House
Kathleen Grissom, Touchstone, $16, 9781439153666

45. The Pale King
David Foster Wallace, Back Bay, $16.99, 9780316074223

46. Little Bee
Chris Cleave, S&S, $15, 9781416589648

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

48. Good Poems, American Places
Penguin, $18, 9780143120766

49. The Lucky One
Nicholas Sparks, Grand Central, $14.99, 9781455508969

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