Grateful Dead posters have long been considered among the most coveted in the concert-poster collecting world, most notably ...

John Peck, known as "The Mad Peck," was a Providence artist famous for his iconic poster ... He did concert posters for the band Cream, among others, and T-shirts, including for the J.

Most people called him Peck, and a longtime buddy told Mark Patinkin “The Mad Peck” was just right for a guy so artistic, ...