From Cade Courtley's SEAL Survival Guide, an excerpt of his sections on active shooter scenarios and basic survival medicine.

Think and act like a Navy SEAL, and you can survive anything. The world is a dangerous place. You can live scared-or be prepared.

"We never thought it would happen to us." It's difficult to imagine encountering an active shooter situation, but the reality is that modern life is unpredictable and dangerous. Don't live in fear or rely on luck. Learn the SEAL mindset: Be prepared, feel confident, and know exactly how to escape a life-threatening situation such as a mass shooting.

Former Navy SEAL and preeminent American survivalist Cade Courtley delivers step-by-step instructions anyone can master in the illustrated, user-friendly SEAL Survival Guide. Don't be taken by surprise. Fight back, protect yourself, and beat the odds. Check out this excerpt and then purchase the essential manual no one in the twenty-first century should be without.