The top five bestselling hardback nonfiction books as of Oct. 4

The top five best-selling hardback novels as of Sept. 20

The top five best-selling nonfiction hardbacks as measured by their rankings on the lists of Barnes & Noble, USA Today, The New York Times, and American Booksellers Association as of Sept. 6

The top five best-selling hardback novels as of Aug. 23

The top five best-selling hardback nonfiction books as of Aug. 9

The top five best-selling novels as of July 25