The textbook outlines the basics of organization theory, types and models of organizations; laws, principles and connections in organizations are analyzed; the methodological basis for the formation of organizational management structures and their types are considered; principles and methods for constructing management structures and factors influencing the choice of their type; organizational culture as the most important factor in the formation of a modern management structure. The course concludes with a presentation of the process and methods of organizational design. The book is intended for students, undergraduates, graduate students and students enrolled in the course “Organization Theory”; it will also be of interest to managers at various levels, employees of executive and legislative authorities.