If the person is just visiting, I doubt they’re looking to learn the history of American culture, government, or literary trove.
I’d give ‘em a sight-seeing guide and tell ‘em to never walk alone at night.
Good point, but the question was:“If you had to recommend one book for a first-time visitor to the U.S. to read, to understand our country, what would it be and why?” I know many people who read and walk at the same time.
I would expect many tourists would like to learn a little history to give context to what they see.