I recently read Matt Ruff’s Lovecraft Country. Some of the main characters are involved with the publication of a book called The Safe Negro Travel Guide. Which is a book that gives tips to black people to avoid danger in Jim Crow America. Turns out - that book was real, The Negro Motorist Green Book.
After seeing a rash of videos featuring white people who aren’t happy about some other people of other skin colors in this country, I wouldn’t be surprised to see this come back into print.