From this book you will not learn how to dig up the dirty secrets of dictators, catch arms dealers or transport secret reports across the border. David Omand, a former senior British intelligence official, talks about the intelligence officer's main skill - to make the right decisions based on limited, incomplete, and sometimes simply unreliable information. From his book, you'll learn what to do when you don't have time to fact-check, how to learn not to panic, not to stupor, correctly assess risks, ignore conspiracy theories and bring liars and manipulators to clean water. The author's method of working with information is based on many years of experience of intelligence officers and analysts from different countries, honed during events such as the Falklands war or the Caribbean crisis. Separate chapters of the book are devoted to negotiating and establishing trusting relationships in various circumstances.