Modern people, lulled by a false sense of security, often become overly relaxed. After all, if something goes wrong, you can pull a tiny computer from your pocket, find the answer to any question, or call for help. But what if a catastrophe happens and you have to rely only on yourself? Are you ready for that? Do you know and can you do enough to survive—in a waterless desert, on the open sea after a shipwreck, in case of an attack, or if an armed robber bursts into your home? Clint Emerson, a retired U.S. Navy SEAL special operations officer, describes in his book skills taken from the arsenal of intelligence and special services personnel—skills they often have to use in extreme conditions, on the edge of life’s strength, when you must make the only correct decisions quickly and accurately. In a deadly dangerous situation, when everything comes down to fractions of a second, these skills will help not only a professional, but any person save a life—yours and others’.