The viral blueprint hobby taking over summer: What are cyanotypes and how do you make them?

The heat may be relentless, but artists and hobbyists are finding a surprisingly creative use for it. Cyanotypes are having a major moment this summer ...
Seven Days

Renée Greenlee Creates in Collaboration With the Watershed

Many artists have used cyanotype photography since British inventor Sir John Herschel discovered the technique in 1842. After combining two nontoxic chemical solutions derived from salts and iron, ...