What is it?
The Pulitzer Prizes are associated with several journalism categories, but also have categories in fiction, drama, biography, general nonfiction, history, poetry and music. Since 1948, the fiction award is presented for American books published in the last year, “preferably dealing with American life”.
What is the latest winner?
Less, by Andrew Sean Greer won in 2018.
What other books were shortlisted last year?
There were 3 finalists, listed on the below link.
What previous titles have won?
See this comprehensive list.