MRD Foot is acknowledged as one of the leading authorities on the subject, and this work effectively summarises his efforts on SOE in different areas - as well as giving a clear picture of its origins, objectives and methods. A relatively easy read, enjoyable, and with many well chosen examples and comments on the task and problems of the organisation.
Probably the biggest problem facing the author was to pack much information into a single volume - so if you want to pick on one aspect or country it would be worth consulting one of his other works. I understand that his 'SOE in France' is a classic, though I have not read this one as yet.
Recommended for anybody interested in clandestine operations, or World War II - also a good choice for the general reader who wants an all round picture of SOE in a single work.