This book titled "Principles of Electronic Warfare" by Robert J. Schlesinger is a hardcover edition published by Prentice-Hall International in 1961. It is written in English and covers the topic of warfare. The book is an excellent addition to any collection and is highly recommended for those interested in the history of electronic warfare. The binding is intact and the pages are clean without any tears or folds. This book is a must-have for anyone interested in the history of warfare and the evolution of electronic technology.