New York-based artist Kelley Walker hacks advertising and displays its inner workings as art. His large-scale prints appropriate iconic cultural images, digitally altering them to expose their underlying agendas. In “Black Star Press: Black Star, Star Press Star” (2004), Walker combined nondigital collage processes to reference abstract painting: He smeared newspaper photos of the Birmingham race riots with melted chocolate and toothpaste, scanned them into a computer and made photographic prints from the results. Such hybridized work is neither quite post-Pop nor just appropriation. In the past few years, Walker has emerged as one of the most innovative and rigorous young artists in New York and has become much in demand not only for his solo work but for his collaborations with fellow New Yorker Wade Guyton. This monograph is a valuable introduction to Walker’s technical processes, and essays by maverick critic and curator Bob Nickas and writer Scott Rothkopf lend much insight into his practice.