Based on sales for the week ending September 18, 2011

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

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

18. Inside of a Dog
Alexandra Horowitz, Scribner, $16, 9781416583431

19. Moneyball
Michael Lewis, Norton, $15.95, 9780393338393

20. Lucky Peach, Issue 1: Ramen
Chris Ying (Ed.), McSweeney's, $10, 9781936365463

21. 1491
Charles C. Mann, Vintage, $16.95, 9781400032051

22. Fifth Avenue, 5 A.M.
Sam Wasson, Harper Perennial, $13.99, 9780061774164

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

24. Griftopia
Matt Taibbi, Spiegel & Grau, $16, 9780385529969

25. The Wave
Susan Casey, Anchor, $15.95, 9780767928854

26. The Big Short
Michael Lewis, Norton, $15.95, 9780393338829

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

28. Chelsea Chelsea Bang Bang
Chelsea Handler, Grand Central , $15.99, 9780446552431

29. Prevent and Reverse Heart Disease
Caldwell B. Esselstyn, Jr., Avery, $17, 9781583333006

30. Sex at Dawn
Christopher Ryan, Cacilda Jetha, Harper Perennial, $15.99, 9780061707810

31. Slow Love
Dominique Browning, Plume, $15, 9780452297500

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

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

34. Wait for Me!
Duchess Deborah Mitford, Charlotte Mosley, Picador, $18, 9780312610647

35. Don't Let's Go to the Dogs Tonight
Alexandra Fuller, Random House, $15, 9780375758997

36. Rand McNally Road Atlas 2012
Rand McNally, $13.95, 9780528003363

37. Night
Elie Wiesel, FSG, $9.95, 9780374500016

38. The Memory Palace
Mira Bartok, Free Press, $15, 9781439183328

39. The Disappearing Spoon
Sam Kean, Back Bay, $14.99, 9780316051637

40. The Official SAT Study Guide
College Board, $21.99, 9780874478525

41. Eat to Live:
Joel Fuhrman, Little Brown, $15.99, 9780316120913

42. Packing for Mars
Mary Roach, Norton, $15.95, 9780393339918

43. All the Devils Are Here
Bethany McLean, Joe Nocera, Portfolio, $17, 9781591844389

44. I'm Not the Biggest Bitch in This Relationship
Wade Rouse (Ed.), NAL, $14, 9780451234582

45. Three Cups of Deceit
Jon Krakauer, Anchor, $9.95, 9780307948762

46. Medium Raw
Anthony Bourdain, Ecco, $15.99, 9780061718953

47. The Sweet Life in Paris
David Lebovitz, Broadway, $14, 9780767928892

48. Blink
Malcolm Gladwell, Back Bay, $15.99, 9780316010665

49. Freakonomics
Steven D. Levitt, Stephen J. Dubner, Harper Perennial, $15.99, 9780060731335

50. The China Study
Thomas M. Campbell, T. Colin Campbell, Benbella, $16.95, 9781932100662