The book is dedicated to an important section of theoretical cybernetics. In a single language and from a single position, the results obtained at present in the study of models of collective behavior of atomates, and the application of ideas and methods of collective behavior to the description of complex systems and the organization of control in such systems are considered. The book covers a wide range of problems from the behavior of automata in random environments to the behavior of systems of interacting automata that solve purely logical problems. The book is of interest to scientists and engineers working in the field of automata theory, control theory and the design of control systems in complex systems.