How Spies Think: Ten Lessons in Intelligence

Brought to you by Penguin.

From the former director of GCHQ, learn the methodology used by the British intelligence agencies to reach judgements, establish the right level of confidence and act decisively.

Intelligence officers discern the truth. They gather information - often contradictory or incomplete - and, with it, they build the most accurate possible image of the world. With the stakes at their absolute highest, they must then decide what to do.

In everyday life, you are faced with co...