Alphen, Ernst van. Francis Bacon and the Loss of Self.
Cambridge: Harvard University Press, 1993.

Gale, Matthew. Francis Bacon.
New York: Skira Rizzoli, 2008.

 

Study for Portrait II - after the Life Mask of William Blake, Francis Bacon (1955)
http://www.guardian.co.uk/culture/2002/feb/23/art.williamblake

Painting the Pope: An Analysis of Francis Bacon's Study After Velázquez's Portrait of Innocent X
http://litthe.oxfordjournals.org/cgi/content/full/23/1/33