13 Outsider Artists

A collection of 13 Outsider Artists titled "The 13 Most Amazing Outsider Artists of All Time"with one of their artworks had a brief presentation in Flavorwire.
Among them Judith Scott,

Henry Darger (i didn't know that Henry Darger considered an outsider artist),

Miroslav Tichý (Miroslav Tichy and Henry Darger thought to be naive artists, not outsider artists, but...)