The Art of Security is a series of texts by
Michael Lawrie. They are copyright
but the ones listed here may be reasonably used as long as
they are properly referenced.
Most of these have been collected and rewritten in the form of a book
on Commercial Security - details of availability should be provided
when I pull my finger out...
Meanwhile... The following are available here:
Copyright (C) 1988, 1996, 1999, 2001, 2002, 2004, 2005 - Michael Lawrie.