John's book is available here:
http://idcp.marist.edu/enterprisesystemseducation/assemblerlanguageresources-1.html t 10:43 AM 2/27/2018, you wrote:
I don't believe that John has any personal or business web site. As I recall, his Assembler text book has been placed on various web sites (including Marist college, but I don't have a link). His SHARE presentations are available on their web site: https://www.share.org