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

[Susan Higginbotham]

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.