Trademark and copyright are part of what the legal community calls "intellectual property." These two areas of advertising law are too frequently overlooked by both scholars and practitioners. Too often, trademarks are violated, or the marketer fails to protect a mark. And, commonly, advertisements are published with no effort to protect the copyrights in the art and copy of the ads.
As a simple primer to the copyright laws, for students, I prepared How to Copyright Your Creative Work. For other information about both copyright and trademark law, see:
(c) 1997-2009, Jef I. Richards, Texas Advertising, The University of Texas at Austin