These books are listed from the most recent (2025) to the least recent (1950).
From Google AI... "The National Book Award for Fiction is one of five annual National Book Awards, which recognize outstanding literary work by United States citizens. Since 1987, the awards have been administered and presented by the National Book Foundation, but they are awards 'by writers to writers.' The panelists are five 'writers who are known to be doing great work in their genre or field.'
The award recognizes one book written by a U.S. citizen and published in the U.S. from December 1 to November 30. The award is $10,000 and a bronze sculpture; other finalists get $1,000, a medal, and a citation written by the panel."