Based on sales for the week ending February 10, 2013

16. True Love
Rachel Buchholz, National Geographic Society, $9.95, 9781426210365

17. Killing Lincoln
Bill O'Reilly, Martin Dugard, Holt, $28, 9780805093070

18. American Sniper
Chris Kyle, Morrow, $26.99, 9780062082350

19. Wheat Belly
William Davis, Rodale, $25.99, 9781609611545

20. Far From the Tree
Andrew Solomon, Scribner, $37.50, 9780743236713

21. The Signal and the Noise
Nate Silver, Penguin Press, $27.95, 9781594204111

22. Naked Statistics
Charles Wheelan, Norton, $26.95, 9780393071955

23. Jerusalem: A Cookbook
Yotam Ottolenghi, Sami Tamimi, Ten Speed Press, $35, 9781607743941

24. Killing Kennedy
Bill O'Reilly, Martin Dugard, Holt, $28, 9780805096668

25. Darth Vader and Son
Jeffrey Brown, Chronicle, $14.95, 9781452106557

26. Good Prose
Tracy Kidder, Richard Todd, Random House, $26, 9781400069750

27. Shred
Ian K. Smith, St. Martin's, $24.99, 9781250035868

28. Pukka's Promise
Ted Kerasote, Houghton Mifflin Harcourt, $28, 9780547236261

29. To Sell Is Human
Daniel H. Pink, Riverhead, $26.95, 9781594487156

30. Underwater Dogs
Seth Casteel, Little Brown, $19.99, 9780316227704

31. No Easy Day
Mark Owen, Dutton, $26.95, 9780525953722

32. The Genius of Dogs
Brian Hare, Vanessa Woods, Dutton, $27.95, 9780525953197

33. The Hour of Peril
Daniel Stashower, Minotaur, $26.99, 9780312600228

34. The Power of Habit
Charles Duhigg, Random House, $28, 9781400069286

35. Fifty Shades of Chicken: A Parody in a Cookbook
F.L. Fowler, Clarkson Potter, $19.99, 9780385345224

36. Short Nights of the Shadow Catcher
Timothy Egan, Houghton Mifflin Harcourt, $28, 9780618969029

37. Grace
Grace Coddington, Random House, $35, 9780812993356

38. Jesus Calling
Sarah Young, Integrity, $15.99, 9781591451884

39. The Rebellious Life of Mrs. Rosa Parks
Jeanne Theoharis, Beacon, $27.95, 9780807050477

40. Plenty
Yotam Ottolenghi, Chronicle, $35, 9781452101248

41. Fat Chance
Robert Lustig, Hudson Street Press, $25.95, 9781594631009

42. Beyond Belief:
Jenna Miscavige Hill, Morrow, $27.99, 9780062248473

43. How Children Succeed
Paul Tough, Houghton Mifflin Harcourt, $27, 9780547564654

44. Hallucinations
Oliver Sacks, Knopf, $26.95, 9780307957245

45. Unknown Pleasures
Peter Hook, It Books, $27.99, 9780062222565

46. Wheat Belly Cookbook
William Davis, Rodale, $27.99, 9781609619367

47. Pursued
Jud Wilhite, Faithwords, $21.99, 9781455515462

48. Go the F**k to Sleep
Adam Mansbach, Ricardo Cortes (Illus.), Akashic, $14.95, 9781617750250

49. Invisible Armies
Max Boot, Liveright, $35, 9780871404244

50. The Plan
Lyn-Genet Recitas, Grand Central, $25.99, 9781455515486