Have been interested in the obsessive impulse to produce script, especially when the script is a succession of meaningless but repetitive symbols.
As a psychological disorder, graphomania is closely associated with schizophrenia and obsessive compulsive disorder. Lewis Carrol, Dostoevsky and van Gogh were all said to have exhibited graphomania in their notebooks. Lewis Carrol often wrote backwards, upside-down, in circles, etc. An example:
The most famous graphomaniac, however, is likely Robert Crumb's brother, Charles, whose comics were at one point completely overtaken by the script:
Graphomania is characterized by specifically meaningless script. There is a graphomaniac by the name of Matsumoto, whose script I cannot determine to be indecipherable, but whose writings are certainly jumbled in the graphomaniacal style.
An example from "Midnight Disease" a book by Alice Flaherty on Hypergraphia:
An example from Max Ernst suggests an alien language:
The Voynich manuscript surfaced sometime in the 15th century. Its author, origin and purpose are entirely unknown. It is written in an undecipherable script and seems to document the botany, biology and astronomy of a fictive universe. Its 209 pages consist of the unknown script running alongside illustrations of this fictive universe, with the script often working within the illustrations as graphic element.
The Voynich Manuscript is at the Beinecke, Yale's Rare Books library. I've yet to actually see it in person.
Its script has stumped the greatest cryptographers of the world, many of whom have concluded that the symbols have enough pattern to suggest a working language but whose semantic system is still unknown. I would conjecture that it is instead history's greatest example of graphomania, suffused with a deep hyper-imaginative dementia. May be one of the most imaginatively written documents in existence.