"Madame Bovary" - Gustave Flaubert - Considered to be one of the masterpieces of literature, but it's so long that I can't really recommend it.
"The Sales Acceleration Formula" - Mark Roberge - I'd recommend this to any entrepreneur.
"Status Anxiety" - Alain de Botton - A pretty good pop scienc-y psychology book.
"Zero to One" - Peter Thiel - A philosophy book imo.
"Tokyo Vice" - Jake Adelstein - A look at the underbelly of Japanese society.
"Capitalism and the Jews" - Jerry Muller - A very good overview of the intersection of the Jewish faith and culture with their business success.
"The Richest Man in Babylon" - George S. Clayson - A personal finance parable. Recommended.
"The Life Changing Magic of Tidying Up" - Marie Kondo - A philosophy book. Worth a look even if you don't ascribe to its teachings.