Daniel Pickering Walker (1914-1985) was an English historian and author of several noted studies on the occult in Western history. Walker was trained at Oxford. He spent much of his career at the Warburg Institute at the University of London. His best known work is 1958's "Spiritual and Demonic Magic: From Ficino to Campanella". The book examines the role of magic in the lives and thought of such diverse figures as Marsilio Ficino, … Wikipedia
The definitive Wikipedia entry for D. P. Walker. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/D%2e_P%2e_Walker