Wall has been one of the key figures in the city’s art scene for years. In 2002, he was awarded with the prestigious Hasselblad Award. His work has helped to define photoconceptualism. His photographs are often carefully planned, like scenes in a movie, and he maintains full control of all the details within the scene. His compositions are always well thought out, and in some cases borrowed from history or from heavyweight painters like Édouard Manet and Katsushika Hokusai. Many of his images are large transparencies placed in light boxes; according to the photographer, this idea came to him during a bus trip between Spain and London after he saw a large advertisement mounted on a light box at a bus stop. The topics he develops in his photographs – like urban violence, racism, poverty and gender conflicts – are usually social and political.