Doug Grant, known by his pen name, is a decorated military veteran and mathematical genius whose life has been marked by extraordinary achievements. Serving as a Sergeant First Class in Vietnam during the war's most intense period, Grant demonstrated exceptional leadership and courage, earning numerous decorations, including the Vietnamese Service Medal with one Silver Star. After his military service, he embarked on a diverse career path, working as an operational agent for a CIA-contracted company, studying law, and pioneering advanced strategies for winning at Blackjack, which became globally renowned. Grant's innovative "floating zones" method revolutionized the game, leading to widespread recognition and invitations to lecture at esteemed universities. Despite facing legal battles with casinos, Grant's impact on advantage gambling remains profound, with his systems continuing to empower thousands of players worldwide. His contributions to mathematics and gaming have left an indelible mark on both industries, cementing his legacy as a true visionary.