The Swedish Academy sends out thousands of invitations each year for professors and others in the literary world to nominate writers for the prize in a secretive and precise process.
source https://www.nytimes.com/2023/10/05/arts/how-to-win-nobel-prize-literature.html
source https://www.nytimes.com/2023/10/05/arts/how-to-win-nobel-prize-literature.html