According to his credentials, Mr. Beesly served in the RNVR. One of his assignments was with the Naval Intelligence Division during WWII. Therefore he has a practical knowledge of the workings of the Royal Navy Intelligence service, as well as an academic background. He indicates that he has personally met some of the people mentioned in this book.

I found this book well written, very readable and based on sound research. Beesly discusses the development of British Naval intelligence during the First World War, as well as its evolution as the war proceeded. A great deal of focus was placed on explaining the stages of development. The various departments and divisions of Naval intelligence did not cooperate, nor apparently did they understand the benefits to be derived from decentralization (a big problem) and cooperation. The areas worked separately, not being able to influence analysis and decision making in the other areas. As changes in leadership were made, these problems began to be worked out.

A very interesting book for those with an interest in WWI activities of the Royal Navy, naval intelligence in general and in the evolution of modern day electronic spying. ( )