Alan Scott & Helmut Staubmann 
Georg Simmel: Rembrandt [PDF ebook] 
An Essay in the Philosophy of Art

First published in 1916 in German, this important work has never been translated into English–until now. Simmel attacks such questions as "What do we see in a work of Art?" and "What do Rembrandt’s portraits tell us about human nature?" This is a major work by a major thinker concerning one of the world’s most important painters.