Here is a list of the works of Charles De Secondat, Baron de Montesquieu and Jean Jacques Rousseau that are contained in the Great Books of the Western World, published by Encyclopedia Britannica. If a selection is clickable, it means that this amateur has read at least enough of it to make a comment or two:
Charles De Secondat, Baron De Montesquieu (1689-1755)
Great Books of Literature home page