This tutorial is an introduction to the mathematical theory of management of organizational systems. Chapter 1'Modeling methodology? defines the model, classifies the types of models and modeling methods, lists the modeling functions and model requirements. The stages of construction and research of mathematical models are considered, optimization problems are formulated and problems of stability and adequacy of models are discussed. The general management model and technology for solving relevant modeling problems are given. Chapter 2'Models of decision making? contains the minimum necessary and used in the construction of models of the functioning of organizations information from the theory of decision-making, including in the conditions of natural and game uncertainty. Chapter 3'Incentive Models in Organizational Systems? presents the main approaches and results of the research of theoretical and game problems of stimulation. Chapter 4'The models of analysis and synthesis of organizational structures? reviews the models of hierarchical structures, describes the basic and general model of the hierarchy of management, formulates and solves the problems of synthesis of optimal hierarchical organizational structures. The manual is intended for university students and postgraduates of management specialties, as well as for scientific and practical workers . Other works by Professor Dmitry Alexandrovich Novikov at Infa . Nata: Models and methods of organizational management of innovative development of the company Mathematical models of formation and functioning of teams Methodology Basic systems of stimulation Models and methods of material stimulation Theory of management of organizational systems Models and methods of management of portfolios of projects Reflective games Theory of games in management of organizational systems