This book gives a total and comprehensive review of the Royal Navy during WW2. It covers all aspects of the service, and provides detailed insights into every theatre of operation from Norway to the Med, the Far East to the monumental battles of the Atlantic. Individual actions, such as the sinking of the Bismark are also incredibly detailed. This book is over 900 pages, and this is mostly due to the level of detail which the reader is provided. Whilst most of the book is fasinating there are extended passages which detail the most inner adminstrative workings and politics of the navy at the highest levels. These can be heavy going and even regarded as monotonous in the extreme. However, the author has a proven track record for being precise and methodical, so you know that what you are reading is as good as a first hand account in many cases.