In Siberia, photographer Oleg Klimov spent a total of three months in a residential psychoneurological institution (or, in Russian, a PNI). During that time, he took about 500 portraits of the PNI’s residents and learned about what life is like in some of Russia’s most closed-off, stigmatized institutions. While getting to know his neighbors and teaching them mathematics and photography, Klimov became convinced that the environment and the lifestyle available to any given person affects them at least as much as the individual traits they were born with