Jerry's Map is a long-term art project started by Jerry in 1963, where he draws a map of an imaginary city using a set of rules and a custom deck of cards. The project has evolved over the years, with Jerry adding new panels and rules to the map. The map is now a large, circular, two-dimensional representation of a virtual world, comprising over 4000 individual panels. The project's creative process is driven by the instructions on the cards, which dictate the actions Jerry takes to modify the map.