Tim Castle - The Negotiation Expert for the AI Age. Tim is redefining what it means to negotiate, lead, and succeed in the modern world. Named one of the Top 30 Negotiation Professionals in the World (2025) by Global Gurus and a multi-award-winning author, Tim is the trusted voice for ambitious professionals, entrepreneurs, and change makers who want to win - at the negotiating table, in sales, and in life.As the founder of The School of Success, Tim has built a global movement around bold thinking, real-world mastery, and the power of belief. His practical frameworks have helped thousands land flagship clients, close high-stakes deals, become world-class communicators, and build unstoppable momentum - all while keeping purpose and integrity at the core.