Based on sales for the week ending September 11, 2011

16. What It Is Like to Go to War
Karl Marlantes, Atlantic Monthly, $25, 9780802119926

17. Start Something That Matters
Blake Mycoskie, Spiegel & Grau, $22, 9781400069187

18. The 17 Day Diet
Dr.Mike Moreno, Free Press, $25, 9781451648652

19. The Social Animal
David Brooks, Random House, $27, 9781400067602

20. Rafa
Rafael Nadal, John Carlin, Hyyperion, $27.99, 9781401324513

21. Willpower
Roy F. Baumeister, John Tierney, Penguin Press, $27.95, 9781594203077

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

23. Nothing Daunted
Dorothy Wickenden, Scribner, $26, 9781439176580

24. Believing Is Seeing
Errol Morris, Penguin Press, $40, 9781594203015

25. Top Secret America
Dana Priest, William Arkin, Little Brown, $27.99, 9780316182218

26. Sh*t My Dad Says
Justin Halpern, It Books, $15.99, 9780061992704

27. Wendy and the Lost Boys
Julie Salamon, Penguin Press, $29.95, 9781594202988

28. Incognito
David M. Eagleman, Pantheon, $26.95, 9780307377333

29. Lost in Shangri-La
Mitchell Zuckoff, Harper, $26.99, 9780061988349

30. SEAL Team Six
Howard E. Wasdin, Stephen Templin, St. Martin's, $26.99, 9780312699451

31. The 4-Hour Body
Timothy Ferriss, Crown , $27, 9780307463630

32. Sleeping with the Enemy
Hal Vaughan, Knopf, $27.95, 9780307592637

33. Boo: The Life of the World's Cutest Dog
J.H. Lee, Chronicle, $12.95, 9781452103068

34. All My Friends Are Dead
Avery Monsen, Jory John, Chronicle, $9.95, 9780811874557

35. The Dukan Diet
Pierre Dukan, Crown Archetype, $26, 9780307887962

36. 101 Things to Learn in Art School
Kit White, MIT Press, $14.95, 9780262016216

37. 40 Years of Chez Panisse
Alice Waters, Clarkson Potter, $55, 9780307718266

38. I Am Maru
Mugumogu, Morrow, $15.99, 9780062088413

39. Area 51
Annie Jacobsen, Little Brown, $27.99, 9780316132947

40. A Book of Secrets
Michael Holroyd, FSG, $26, 9780374115586

41. Strengths Finder 2.0
Tom Rath, Gallup, $24.95, 9781595620156

42. After America
Mark Steyn, Regnery, $29.95, 9781596981003

43. Love Wins
Rob Bell, HarperOne, $22.99, 9780062049643

44. Barefoot Contessa How Easy Is That?
Ina Garten, Clarkson Potter, $35, 9780307238764

45. Blood, Bones & Butter
Gabrielle Hamilton, Random House, $26, 9781400068722

46. The Warmth of Other Suns
Isabel Wilkerson, Random House, $30, 9780679444329

47. Mission Street Food
Karen Leibowitz, Anthony Myint, McSweeney's, $30, 9781936365159

48. My Father's Daughter
Gwyneth Paltrow, Grand Central, $30, 9780446557313

49. Leningrad
Anna Reid, Walker & Company, $30, 9780802715944

50. Absolute Monarchs
John Julius Norwich, Random House, $30, 9781400067152