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The Experiment Mindset

Unlocking the Science of Personal Growth

Tamsin Simounds

$32.95

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English
Wiley
27 May 2026
Your next breakthrough starts with one experiment.

You've done the courses, listened to the podcasts, made the plans. But you're still stuck in the same patterns. The problem isn't your ambition — it's that you've been trying to think your way into change when you need to experiment your way there.

The Experiment Mindset offers a radically different path. Drawing on cutting-edge neuroscience, behavioural psychology and over a decade working with leaders and founders,​ ​leadership expert Tamsin Simounds reveals how real transformation happens: not through what worked for someone else, but through discovering what works for your brain, body, and life.

Apply the Three Levers of Change (Psychology, Physiology, Environment) to create sustainable growth Become your own best experiment and gather real data about what works for you Navigate failure as feedback, turning setbacks into stepping stones Build ​​wisdom through action, not endless planning Rewire your brain to help you adapt to constant change

The Experiment Mindset is a science-backed, story-rich guide for ambitious professionals, emerging leaders and anyone tired of fluffy advice. With practical frameworks, real-world examples and actionable experiments you can start today, you'll learn how to evolve through change — one small, courageous ​​test at a time.
By:  
Imprint:   Wiley
Country of Publication:   Australia
Dimensions:   Height: 23mm,  Width: 15mm,  Spine: 2mm
Weight:   340g
ISBN:   9781394389391
ISBN 10:   1394389396
Pages:   256
Publication Date:  
Audience:   General/trade ,  ELT Advanced
Format:   Paperback
Publisher's Status:   Forthcoming
Introduction xi Part I Understanding the science of personal growth 1 1 What keeps people stuck 3 2 The neuroscience of growth 19 3 Testing what works for you with the N-of-1 approach 33 Part II The three levers for growth 51 4 Environment 53 5 Physiology 69 6 Psychology 87 Part III The Experiment Mindset method 113 7 Designing your experiments 115 8 Translating information to wisdom 135 9 When experiments 'fail' 157 Part IV Living an experimental life 171 10 Minimising risk without losing momentum 173 11 The Experiment Mindset at work 187 12 Living experimentally 203 Conclusion 215 References and further reading 221 About the author 231 Acknowledgements 233

TAMSIN SIMOUNDS is a leadership expert and keynote speaker whose expertise has been featured in Thrive Global, Smart Company, Business Chicks and Women’s Agenda. With a decade of lived leadership experience and another decade coaching leaders, she has worked across industries from big banks and fast-growth tech startups to social enterprises and small businesses.

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