Dennis King is an internationally recognized authority on vintage rock and roll posters; contemporary posters, graphics, and screenprints, and Japanese pop culture artifacts. He maintains one of the largest private poster collections in the world and is regularly called upon by publications, libraries, and museums worldwide for authentication and historical commentary. King operates the D.King Gallery in Berkeley, Calif., which services an extensive poster-related Web site at www.dking-gallery.com, and sponsors the highly respected informational site rockpostercollector.com. He is coauthor of Art of Modern Rock: The Poster Explosion.