From the head of the Council on Foreign Relations, "The Bill of Obligations." It's 10th in nonfiction on the list, which reflects sales for the week ended Jan. 28.
And in nonfiction, Tracy Kidder on living homeless in Boston, and from Ilyon Woo, the story of a married couple who escaped slavery by passing: She as a white man, he as the man's slave and traveling companion.(These rankings reflect sales for the week ended Jan. 21.)