All images on this site are copyrighted.
A copyright exists when a work is first fixed in tangible form.
There is no longer any requirement that a copyright notice
be affixed to a work of art in order to have a valid copyright.
Use of the notice is optional.
For reference to copyright information visit the U.S. Copyright Office.
The actual United States Code-title 17-Copyrights can be accessed
from theCornell University Law web site.
http://www4.law.cornell.edu/uscode/17/
