Shadows are very intriguing and differ greatly in form. Beside shadows’ ability to prove the existence of material objects, shadows also carry their own intrinsic value and existence, not only as a reproduction or copy of the world of material things, but also as a type of “anti-matter” marking the space material objects occupy under the sun. Zhang Dali's photography utilises the early process of cyanotypes to create evocative images of the transience of urban life. Beside his east-Beijing studio, Zhang uses the receding vestiges of the natural environment to create his large scale compositions. His practice also includes installation, working directly onto old buildings earmarked for destruction. The constant of his work is an engagement with the ever changing urban fabric of China.