Subject Matter, a London-based online gallery specialized in art photography, is now representing Xiaowen Zhu's Dualism series. Dualism: Wall (2013), Limited edition I Signed by artist I Archival inks and paper Dualism captures overlooked objects and space in daily life. At first, I was interested in documenting random space in urban environment in Southern California: abandoned oil refinery, residential areas in industrial districts, building façades, and architectural compo