Since the dawn of Rock & Roll, local concert promoters have haphazardly nailed, stapled or nailed posters to walls and poles leaving the paper to wither and deteriorate in the elements.

But as Spencer Drate and Judith Salavetz chronicle in Swag2: Rock Posters of the '90s and beyond (Harry N. Abrams), they've evolved into a bonafied art form, with Carlos Segura, Mike Joyce, Brutefish Graphics and others ushering in a new golden age. High art? Sure. Rock & Roll Relics? Why not? Just don't call them advertisements.