Sent to GMU 27 September 2007. A study of complexity extending over 30 years has produced almost a thousand computer files, papers, reports, records of conference presentations, and transparencies. Inspired by organizational projects carried out elsewhere which produced some exemplary organized material, the author undertook the task of producing categories that could assist in working with complexity. ABSTRACT: Three complementary, but distinct, tasks were carried out to structure complexity, based on different parts of the available material. In the first approach, 20 Laws of Complexity developed over the course of the research, were placed in five categories. Three of them involve human behavior: Habitual Behavior, Physiological Behavior, and Organizational Behavior; one category involves Communication Media; and one category involves Mathematical Operations. In the second approach, over 500 transparencies were organized into 14 categories which, in turn, were organized into four areas. The four areas are: Site of Applications, Applications of Science, Sciences, and Infrastructure of Science. In the third approach, 21 essays on complexity were organized into six categories. These are Organizational Flaws, Linguistic Constraints, Views on Complexity, Science and Organizational Behavior, Organizational Enhancements, and University Redesign.