Rankings reflect sales for the week ended Dec. 20, which were reported on a confidential basis by vendors offering a wide range of general interest titles. Every week, thousands of diverse selling locations report their actual sales on hundreds of thousands of individual titles. The panel of reporting retailers is comprehensive and reflects sales in stores of all sizes and demographics across the United States. An asterisk (*) indicates that a book’s sales were barely distinguishable from those of the book above. A (b) indicates that some bookstores reported receiving bulk orders. ___ FICTION 1. THE WIDOW, by John Grisham. (Doubleday) When Simon Latch, a lawyer in rural Virginia, is accused...