The Triumph of Reason and Truth: Philosophy, in the Form of Jean-Jacques Rousseau, 1712-1778, Uncovering Reason and Truth, Hidden from the Universe by Error and Lies, (Late 18th Century engraving).
Image from Art Museum Image Gallery.
The following are standard, scholarly works on all aspects of philosophy.
Reference Universe searches the table of contents & indexes of recent print and electronic encyclopedias in the CSS Reference Collection.