- Preface.- Part I: Introduction.- Subject of optimal control.- Mathematical model for controlled object.- Part II: Control of Linear Systems.- Reachability set.- Controllability of linear systems.- Minimum time problem.- Synthesis of optimal system performance.- The observability problem.- Identification problem.- Part III: Control of Nonlinear Systems.- Types of optimal control problems.- Small increments of a trajectory.- The simplest problem of optimal control.- General optimal control problem.- Problems with intermediate states.- Extremals field theory.- Sufficient optimality conditions.- Conclusion.- Appendix.- Examples of tasks and solution.- Bibliography.