Since its advent, the art of photography has been a process of artistic experimentation. Hundreds of processes have been invented since its inception, including gum bichromate, platinum/palladium, and wet plate collodion. These alternative processes don’t just still exist; they are thriving in the digital age. Discover 20 emerging and established photographers who use these and countless other processes to create unique and engaging photographic prints in a specially curated list by Christina Z. Anderson!

Platinotype: Making Photographs in Platinum and Palladium with the Contemporary Printing-out Process describes the mechanisms and chemistry of platinum/palladium printing in safe and practical ways.