Vovin just posted a description of Donald Tyson's annotated edition of King James' "Daemonologie". Just a note, but you can actually read and download this as well as many other Renaissance era magical texts on Google Books for free. For those living outside the US or whose location otherwise prevents them from downloading the same books scanned by the Google Books initiative, you can check archive.org where the files are often downloadable in pdf or djvu.
Of course, a lot of the free books available are in Latin and less frequently in French or German.
Other similar books include the Daemonolatreiae Libri Tres by Nicolas Remy (Nicholai Remigii in the Latin genetive case) and the Malleus Maleficiarum. Agrippa's corpus is also available in Latin.