Based on sales for the week ending March 6, 2011

16. The Book of Awakening
Mark Nepo, Conari, $18.95, 9781573241175

17. Stones Into Schools
Greg Mortenson, Penguin, $16, 9780143118237

18. Mennonite in a Little Black Dress
Rhoda Janzen, Holt, $14, 9780805092257

19. Infinite City: A San Francisco Atlas
Rebecca Solnit, Sandow Birk (Illus.), University of California Press, $24.95, 9780520262508

20. The Other Wes Moore
Wes Moore, Spiegel & Grau, $15, 9780385528207

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

22. Dead End Gene Pool
Wendy Burden, Gotham, $16, 9781592406067

23. Silk Parachute
John McPhee, FSG, $15, 9780374532628

24. The Checklist Manifesto
Atul Gawande, Picador, $15, 9780312430009

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

26. Country Driving
Peter Hessler, Harper Perennial, $15.99, 9780061804106

27. Food Rules
Michael Pollan, Penguin, $11, 9780143116387

28. Women Food and God
Geneen Roth, Scribner, $15, 9781416543084

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

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

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

32. The Cello Suites
Eric Siblin, Grove, $15.95, 9780802145246

33. Christianity
Diarmaid MacCulloch, Penguin, $25, 9780143118695

34. 127 Hours
Aron Ralston, Atria, $15, 9781451618501

35. Half the Sky
Nicholas D. Kristof, Sheryl WuDunn, Vintage, $15.95, 9780307387097

36. Americans in Paris
Charles Glass, Penguin, $18, 9780143118664

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

38. The Tipping Point
Malcolm Gladwell, Back Bay, $15.99, 9780316346627

39. 5 Very Good Reasons to Punch a Dolphin in the Mouth (and Other Useful Guides)
The Oatmeal, Matthew Inman, Andrews McMeel, $14.99, 9781449401160

40. Clean
Alejandro Junger, HarperOne, $14.99, 9780061735332

41. The Omnivore's Dilemma
Michael Pollan, Penguin, $16, 9780143038580

42. Eat, Pray, Love
Elizabeth Gilbert, Penguin, $16, 9780143118428

43. Making Toast
Roger Rosenblatt, Ecco, $12.99, 9780061825958

44. The CalorieKing Calorie, Fat & Carbohydrate Counter 2011
Allan Borushek, Family Health, $8.99, 9781930448339

45. Where Men Win Glory
Jon Krakauer, Anchor, $15.95, 9780307386045

46. The Power of Now
Eckhart Tolle, New World , $14, 9781577314806

47. Shop Class as Soulcraft
Matthew B. Crawford, Penguin, $15, 9780143117469

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

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

50. The World Almanac and Book of Facts 2011
World Almanac, $12.99, 9781600571343