Book excerpt: The impact of Andy Warhol on contemporary culture is incalculable. A pioneer in virtually every media in which he worked, Warhol also has a lesser-known hand in such contemporary staples as reality TV, computer art, and the rock-gig light show. In the wake of dedicated Twitter feeds today that easily adapt his short epithets or 'Warholisms' into 140-character snippets, Andy Warhol's cultural relevance seems only to grow in the 21st century. This title brings together notable writers who have examined the influence and legacy of Warhol's life and work.