This Understanding treatise is a comprehensive and up-to-date guide to the law of trademarks and unfair competition. It provides a thorough introduction to the federal laws protecting registered trademarks and trade dress, as well as the broad array of federal and state unfair competition doctrines which protect unregistered trademarks and trade dress. Coverage includes the standards and procedures for obtaining federal registration, the rights and remedies available to owners of both registered and common law marks under federal and state law, and the full array of applicable defenses.