Books on John Dee

IN THE MAIL:

Christopher Whitby, John Dee's Actions with Spirits (Volumes 1 and 2): 22 December 1581 to 23 May 1583: 1-2 (Routledge, 1988 pbk. rpt. 2013)

Nicholas H. Clulee , John Dee's Natural Philosophy: Between Science and Religion (Routledge, 1988 pbk. rpt. 2014)

Background here and links.