Why read Room 40?

Book cover of Room 40: British Naval Intelligence 1914-1918

Book description

Recounts World War I intelligence operations of the British, shows how broken German codes were used to help control the shipping lanes, and identifies the events in which Naval Intelligence played a key role

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War
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Why read it?

1 author picked Room 40 as one of their favorite books. Why do they recommend it?

Mark Harris

Author

Good intelligence is the key to winning any war.

The work of Bletchley Park in the Second World War is well known. The equally important role that the enigmatically named Room 40 played in the First World War is less well known.

This book unravels the story of this formidable naval code breaking and intelligence unit. It was made up of men from all walks of life, under the leadership of the maverick genius and spymaster, Rear-Admiral ‘Blinker’ Hall.

Without the work of Room 40 there would have been no naval battles at Dogger Bank and Jutland. The U-Boat campaign…

From Mark's list on The best books about First World War naval history that don't have the same old story.