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About
Tim Castle is a bestselling author, award-winning business leader, and globally recognized negotiation and sales expert. Ranked among the World's Top 30 Negotiation Professionals by Global Gurus in 2025, Tim is known for his innovative approach at the intersection of negotiation, emotional intelligence, and AI-driven strategy. His bestselling books-including The Art of Negotiation which has been translated into multiple languages and used in research papers, The Momentum Sales Model, and The First Domino-are used by universities, Fortune 100 companies, and startups worldwide to train sales teams, develop leaders, and win flagship clients. His #1 self help book Be The Lion is a popular book for those looking to transform their lives using Tim's 4C's Framework to overcome big challenges and make it happen. Tim is an inspiring speaker, trainer, and host of The Tim Castle Show podcast. As Founder of The Negotiator's Edge Training Academy Tim helps organizations unlock their potential and achieve breakthrough growth.
The Art of Negotiation Benefits
Master Negotiation Skills
"This is a very practical and useful book, showing you what it takes to move from a novice negotiator to a master negotiator. This is a must read!!!"
Inspires Practice
"This book has inspired me to do more negotiating. Every step is crucial, especially knowing exactly what you want. Thanks Tim"
Adjusts Mindset
"Thank you Tim for this book, it really adjusted my thinking and pointed me to work on so many new things in my life. I strongly recommend this read to everyone. Cheers, Michal"
Accelerates Awareness
"Amazing book. The Art of Negotiation written by Tim Castle. This book helped me become aware of what I could be missing out on the next time I'd have a business meeting to make my pitch.
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Unlock Your Full Potiental
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Learn how to influence and persuade in any situation
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Negotiate from a position of strength
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Develop steadfast negotiation confidence and poise
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Overcome obstacles and disarm objections with style and finesse
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Turn a 'no' into ‘yes' and open more doors than ever before
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Build powerhouse long-term relationships and develop your personal economy
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Become an opportunity magnet
Land Your Dream Job
Online Trainings
Crush Your Next Job Interview
Job Interview Mastery is a short course to prepare you for any interview in advance so that you land your dream job and confidently negotiate the outcomes you want.
In Person Workshops
The Negotiator’s Edge is a premier negotiation and influence training academy founded by Tim Castle, a globally recognized negotiation expert.
