Based on sales for the week ending September 23, 2012

16. F in Exams
Richard Benson, Chronicle , $9.95, 9780811878319

17. The Devil in the White City
Erik Larson, Vintage, $15.95, 9780375725609

18. Outliers
Malcolm Gladwell, Back Bay, $16.99, 9780316017930

19. Turn Right at Machu Picchu
Mark Adams, Plume, $16, 9780452297982

20. The Happiness Project
Gretchen Rubin, Harper, $14.99, 9780061583261

21. To Heaven and Back
Mary C. Neal, Waterbrook, $14.99, 9780307731715

22. Born to Run
Christopher McDougall, Vintage, $15.95, 9780307279187

23. The Untethered Soul
Michael A. Singer, New Harbinger, $16.95, 9781572245372

24. The Hare With Amber Eyes
Edmund de Waal, Picador, $16, 9780312569372

25. Cocktail Hour Under the Tree of Forgetfulness
Alexandra Fuller, Penguin, $15, 9780143121343

26. I Remember Nothing
Nora Ephron, Vintage, $14, 9780307742803

27. Steal Like an Artist
Austin Kleon, Workman, $10.95, 9780761169253

28. Destiny of the Republic
Candice Millard, Anchor, $16, 9780767929714

29. Empire of the Summer Moon
S.C. Gwynne, Scribner, $16, 9781416591061

30. Unleash!
Perry Noble, Tyndale, $15.99, 9781414366791

31. That Used to Be Us
Thomas L. Friedman, Michael Mandelbaum, Picador, $16, 9781250013729

32. Incognito
David M. Eagleman, Vintage, $15.95, 9780307389923

33. I Feel Bad About My Neck
Nora Ephron, Vintage, $14, 9780307276827

34. Heaven Is for Real
Todd Burpo, Thomas Nelson, $16.99, 9780849946158

35. Rand McNally 2013 Road Atlas
Rand McNally, $13.95, 9780528006227

36. The Eighty-Dollar Champion
Elizabeth Letts, Ballantine, $16, 9780345521095

37. 1491
Charles C. Mann, Vintage, $16.95, 9781400032051

38. Nothing Daunted
Dorothy Wickenden, Scribner, $15, 9781439176597

39. The 5 Love Languages
Gary Chapman, Northfield, $14.99, 9780802473158

40. Call the Midwife
Jennifer Worth, Penguin, $16, 9780143123255

41. Just Kids
Patti Smith, Ecco, $16, 9780060936228

42. The Table Comes First
Adam Gopnik, Vintage, $15.95, 9780307476968

43. Beyond Outrage
Robert B. Reich, Vintage, $9.99, 9780345804372

44. Zeitoun
Dave Eggers, Vintage, $15.95, 9780307387943

45. The Warmth of Other Suns
Isabel Wilkerson, Vintage, $16.95, 9780679763888

46. The Glass Castle
Jeannette Walls, Scribner, $16, 9780743247542

47. The Four Agreements
Don Miguel Ruiz, Amber-Allen, $12.95, 9781878424310

48. What to Expect When You're Expecting
Heidi Murkoff, Sharon Mazel, Workman, $14.95, 9780761148579

49. Hemingway's Boat
Paul Hendrickson, Vintage, $16.95, 9781400075355

50. What It Is Like to Go to War
Karl Marlantes, Grove, $15, 9780802145925