Given that a few people chose the Fuseli on the cover of our book, I thought I'd also share this Fuseli painting, which is his most (in)famous work:

The Nightmare
(1781)
(Detroit Institute of Art)
Generally the analysis of this painting is of a woman in the throes of a violently erotic dream (the imp on her pelvis). The mare in the background is literally, the night mare that brings the dream.
Fuseli would be a great topic for anyone interested in a painter that dealt with themes of dreaming over and over again.