Book excerpt: Hone your professional approach to a razor's edge using lessons from military and civilian intelligence The Most Dangerous Business Book You'll Ever Read brings expertise from military and civilian intelligence operations into your business life. It lays out hard-hitting interpersonal skills to raise your level of professional effectiveness and vanquish your competition. The Most Dangerous Business Book You'll Ever Read features former Army interrogator Gregory Hartley's unique system of profiling, formula for persuasion, and framework for establishing expertise quickly. Gregory makes his system concrete with case studies, tables, diagrams, and more. Question like a Polygrapher Sort Personalities like a Profiler Close a Deal like a Hostage Negotiator Interview like an Interrogator Network like a Spy Research like an Intelligence Analyst Decide like a SEAL Team-Build like Special Ops Take your career focus to the next level. Discover the skills they don't teach in business school with The Most Dangerous Business Book You'll Ever Read.