Which book was written by an atheist salon owner and explicitly denies the existence of God?
Baron d'Holbach:  He was born Paul Heinrich Dietrich in Edesheim, near Landau in the Rhenish Palatinate, but lived and worked mainly in Paris, where he kept a "salon". Baron d'Holbach:  He was well known for his atheism and for his voluminous writings against religion, the most famous of them being "The System of Nature" (1770).
i don't know