When photographer Erik Christiansen began to smoke marijuana, he found a lack of quality images to represent the diverse plant. This inspired him to take up his own camera and create a series of images that properly show off the aesthetic of cannabis, specifically showing off details like colors, textures, crystals, and more. His collection is featured in Green: A Field Guide to Marijuana and contains 170 different strains with descriptions of the unique qualities of each type.

View more of his photos here.