Shadow Catchers

I went to the V&A last week to see Shadow Catchers. The exhibitions showcases work from five contemporary artists who work without a camera. Instead, they create images on photographic paper by casting shadows, manipulating light or chemically treating the surface of the paper. It was amazing but at the same time amazingly complex how such images were created, especially the work of Pierre Cordier who uses the chemigram process. I still don't fully understand it so here's an example of his work.