Jeff Cooper was an influential American firearms expert, known for his contributions to modern shooting techniques and gun safety. He founded the Jeff Cooper's Gunsite Academy in 1976, which became a premier training facility for military, law enforcement, and civilian shooters. Cooper is credited with developing the Modern Technique of the Pistol, emphasizing the importance of mindset, marksmanship, and gun handling. Cooper also authored several books and articles on firearms and self-defense, helping to shape the conversation around personal protection. His work has had a lasting impact on the shooting community, and he is often regarded as a pioneer in the field of tactical training.