Written by 36 authors of various fields of automatic regulation technology, the book broadly covers various aspects of this field of technology and to some extent reflects the current state of the art of regulation in the United States. The most valuable part of the book is the engineering methods for calculating elements and control systems, as well as extensive information on automatic devices used in the United States. All these materials can undoubtedly be usefully applied by the designing organizations of the Soviet Union and, together with the diverse methods developed by Soviet scientists, will be of considerable interest to engineers and technicians involved in automatic regulation issues.