Actor analysis is a set of approaches that can be used to diagnose problems, formulate policies, and assess the performance of programs, projects, and policies. Actor analysis approaches are currently used for problem-solving in nearly all fields, especially political system engineering, environmental resources management, policy formulation and analysis, and performing arts. Fundamentals of Actor Analysis is Book 1 of the Series, Lecture Notes on Actor Analysis Methodology. Essentially, the basic concepts, tools, and methods of actor analysis are identified and explained. How to apply actor analysis in different fields of practice is also discussed.