Just finished reading Principia Discordia, and if the distinctive page number style weren’t absent, I would’ve sworn I saw this page in there.
A Five-Stage Model of the Mental Activities Involved in Directed Skill Acquisition (PDF)
Unintentionally awesome-looking cover page of the original 1980 article behind my current obsession, the Dreyfus Model of Skill Acquisition.
Looks like a constructivist poster. Or the front of a Cranbook freshman’s Duo-Tang.