“Lincoln in the Bardo,” won the Man Booker Prize

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But that's not a postmortem photo, although it is commonly misidentified as one. Posing stands like the one this gentleman is leaning against were used to help living people stay still. Sadly, there is a lot of bad information on the Internet about postmortem photos. Here's some good information:

https://www.atlasobscura.com/articles/vi...hotographs

And people still take photos of the dead today. There are volunteers in hospitals who will take photos of stillborn infants for their parents. My family has a photo of my grandfather in his coffin from 1975.

My husband's grandfather had immigrated to America from Russia in the early-1900s. When he passed away in West Virginia in the late-1970s, he was photographed in his coffin and in the surroundings so that the pictures could be sent to family members still in the old country to show that he had been given a fitting funeral.