Hat System by Marc Oberon - ebookMarc Oberon's hat System for the production of magic. Each hat represents a role that you play in the production process. Thought process Instead of putting on a "thinking cap", in the HATS system you put on a "hat" instead. That is not a real hat, of course; just one that you visualize yourself wearing as part of the thought process. Eight HATS There are a total of eight of them in my system. Each hat represents a role that you play in the production