Regarding his book, what Bart is trying to explain about the apocalypse views of prophets (book of Daniel's visions and other books that didnt make it into the bible) that John''s account of revelations is something that was written to occur in his time during Neo Ceasars reign, he''s understanding of the number of the beast, that 666 in Hebrew numbering (which was used in that time) adds to Ceasar Nero, but not according to this web site, its 616 or 700
http://www.hol.com/~mikesch/666.htm
I can't find anything in google.