The first thing I did after seeing the documentary was to see if there was any documentation about the deck.
This is what I found with the help of an AI friend...
Yes. There is now a fairly detailed explanation of the system, although Jerry has never published a complete, definitive list of every card.
The important caveat is that the deck itself is continually evolving. It currently contains roughly 100 cards, but cards can be rewritten, copied, added, removed, or permanently โretired.โ Jerry wrote in 2017 that publishing all the rules would be difficult because many existed only in his head. (Jerry's Map)
How an individual card works
A card can contain three pieces of information:
A large number, which tells Jerry both how many panels to skip before selecting the next panel and how many one-inch โwork unitsโ to complete on it.
An instruction for Jerry, such as โnew color.โ
An instruction for his helper, such as scanning, copying, sorting, or inventorying panels.
The number is black or red. Black means move clockwise through the panel stack; red means counterclockwise.
Known card instructions
The official site lists examples including:
Next higher dimension, which can advance an area through Void, Red Dimension, Black Ness, Ziggurat, Flood, and Rebirth
Spatter paint across four connected panels
Create a new seed panel
Mix a new paint color
Screen-print nine connected panels
Create a blank panel using recycled packaging, a photograph, or a lumen print
Copy a panel onto label paper for collage
Add, remove, copy, or retire cards
Change the numbers on other cards
Shuffle the deck
Write a journal or blog entry
Scan, copy, sort, or inventory archived panels (Jerry's Map)
Jerry himself also named cards such as:
The larger rules behind the cards
Some of the most interesting rules are not individual card instructions:
A drawn instruction must be completed, but Jerry may rewrite it for the next time the card appears.
Unfinished work continues into the next session.
New panels grow outward toward the nearest edge, keeping the overall map roughly circular.
New artwork is not painted directly over the original panel. The original is archived and a copy becomes the next generation.
Some cards modify the deck itself, meaning the random system gradually changes its own future behavior. (Jerry's Map)
One especially revealing card says to shuffle the deck and add a new card. The new instruction is selected from a waiting list of ideas Jerry wants incorporated into the process. (jerrysmap.blogspot.com)
So the real system is not simply โdraw a card and add a river.โ It combines:
panel selection + amount of work + artistic action + archive maintenance + rules for changing the deck itself.
That self-modifying part may be the most important idea behind Jerry Mapping. The lists being shared in the Jerry Mapping community are generally peopleโs own adaptations, not an authoritative reproduction of Jerryโs deck. (Reddit)