Based on sales for the week ending October 16, 2011

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

17. Let's Take the Long Way Home
Gail Caldwell, Random House, $14, 9780812979114

18. How to Live
Sarah Bakewell, Other Press, $16.95, 9781590514832

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

20. Life
Keith Richards, Back Bay, $16.99, 9780316034418

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

22. The Mind's Eye
Oliver Sacks, Vintage, $15, 9780307473028

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

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

25. Washington: A Life
Ron Chernow, Penguin, $20, 9780143119968

26. Travels in Siberia
Ian Frazier, Picador, $20, 9780312610609

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

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

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

30. 1491
Charles C. Mann, Vintage, $16.95, 9781400032051

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

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

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

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

35. The Best American Essays 2011
Edwidge Danticat (Ed.), Mariner, $14.95, 9780547479774

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

37. The Best American Science and Nature Writing 2011
Mary Roach (Ed.), Mariner, $14.95, 9780547350639

38. You Had Me at Woof
Julie Klam, Riverhead, $15, 9781594485411

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

40. The Best of the Rejection Collection
Matthew Diffee, Workman, $13.95, 9780761165781

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

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

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

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

45. Healing After Loss
Martha Whitmore Hickman, Harper Perennial, $10, 9780380773381

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

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

48. Into the Wild
Jon Krakauer, Anchor, $14.95, 9780307387172

49. Forks Over Knives
Gene Stone (Ed.), Experiment, $13.95, 9781615190454

50. Zagat New York City Restaurants 2012
Zagat, $15.95, 9781604784060