Tim Castle
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Tim Castle

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Tim Castle is widely recognized as one of the world’s leading negotiation experts and a best-selling author on negotiation, sales, influence, and career success in the AI era. Ranked among the World’s Top 30 Negotiation Professionals (Global Gurus, 2026), Tim helps professionals master high-stakes conversations — from salary negotiations and job offers to executive influence, stakeholder alignment, and enterprise dealmaking. As Founder and CEO of The Negotiator’s Edge Training Academy, Tim is trusted by ambitious professionals, executives, founders, and sales leaders seeking a competitive advantage in today’s rapidly evolving workplace and is widely recognized as the Negotiation Expert for the AI Age. His books consistently rank among the best negotiation books for career development, job interviews, persuasion, and sales performance, reaching #1 in the United States for Career Advancement and #1 in the United Kingdom for Job Interviews. Tim is known for bridging the gap between artificial intelligence and human influence — teaching professionals how to negotiate effectively in a world increasingly shaped by AI. His frameworks combine emotional intelligence, neuroscience, strategic persuasion, and modern negotiation psychology to help readers: • negotiate higher salaries • win job offers • close complex deals • influence senior stakeholders • accelerate career progression • communicate with authority • build lasting professional leverage 📚 Bestselling Books by Tim Castle The Art of Negotiation — widely regarded as one of the best books on negotiation for professionals navigating job interviews, promotions, and high-stakes career conversations. The Momentum Sales Model — Axiom Business Book Award Silver Medal winner and a leading sales negotiation playbook for driving predictable revenue growth. Be The Lion — Business Book Awards finalist focused on mindset, resilience, and identity transformation. The First Domino — a strategic guide to landing flagship clients and building commercial momentum. Magnetic Influence (2026) — a next-generation negotiation book exploring how AI is reshaping persuasion, leadership, and decision-making. Tim hosts The Tim Castle Show, where he interviews world-class thinkers and performers including Robert Cialdini, Jeb Blount, Rich Diviney, and Will Guidara — unpacking the psychology of influence, leadership, and human performance. His work has been featured across major media and top business podcasts, and he is frequently sought after as a keynote speaker and advisor on negotiation strategy, AI-era leadership, and modern sales. Above all, Tim believes negotiation is no longer a niche skill — it is a foundational capability for anyone who wants to thrive professionally. His guiding philosophy: “Believe it is possible.” Follow Tim @timjscastle or visit The Negotiators Edge to elevate your influence, persuasion and negotiation skills.
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The Art of Negotiation

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