Blotter art is a relatively new, and still underground, art form. The drug-documenting site Erowid says it’s led to “an array of creative and stunning designs,” so much so that “it is ...

The “blotter art” is a throwbacks to the 1960s and 70s. Back then, dealer sold the color sheets laced with LSD, commonly known as acid. Today, anyone online can order the striking artwork ...