The 12 Levers: The Complete Psychological Toolkit for Improving Your Life
About this audiobook
'Clear, thoroughly researched and well-written. Please read it before you buy another self-help book' – Barry Schwartz, author of The Paradox of Choice
Experts Spencer Greenberg and Jeremy Stevenson have done the work so you don’t have to.
After analysing more than 100 self-help books and 23 different therapies, they uncovered a
hidden truth: all effective self-help techniques collapse into just 12 high-level approaches.
Now, they’ve distilled those proven methods into a single, actionable guide: The 12 Levers.
Stripped of trends, fads and confusing jargon, The 12 Levers hands you the exact tools you need to navigate life's challenges. You will discover how to:
- Find your direction by clarifying your intrinsic values
- Conquer fear with the most scientifically validated anxiety approach in the world
- Fix your sleep using the most effective techniques from top sleep therapists
- Maximise your downtime with fulfilling ‘glad-you-did-it’ activities
- Get more done by understanding 'The Productivity Equation'
- Break the cycle of self-consciousness using the Attention Training Technique
Intuitive and easy to implement, The 12 Levers isn't just another self-help theory – it's your complete psychological toolkit for a better life.
Spencer Greenberg PhD is a mathematician and entrepreneur specializing in psychology. He’s the founder of Spark Wave, a research organization creating psychology-based products, and Clearer Thinking, which offers self-improvement tools. He hosts the Clearer Thinking podcast, ranked in the top 1% globally. He has personally tested many self-improvement methods – using Cognitive Behavioral Therapy and bold exposure exercises to overcome social anxiety.
Jeremy Stevenson PhD is clinical psychologist with extensive experience. He’s worked with hundreds of clients and explored self-help deeply – both professionally and personally. He’s undergone therapy himself, crediting it with key personal growth. Jeremy has tried all major self-help methods, with some yielding lasting impact.
© 2026 Spencer Greenberg PhD and Jeremy Stevenson PhD (P) 2026 DK Audio
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About the author
Spencer Greenberg PhD is a mathematician and entrepreneur specializing in psychology. He’s the founder of Spark Wave, a research organization creating psychology-based products, and Clearer Thinking, which offers self-improvement tools. He hosts the Clearer Thinking podcast, ranked in the top 1% globally. He has personally tested many self-improvement methods – using Cognitive Behavioral Therapy and bold exposure exercises to overcome social anxiety.
Jeremy Stevenson PhD is clinical psychologist with extensive experience. He’s worked with hundreds of clients and explored self-help deeply – both professionally and personally. He’s undergone therapy himself, crediting it with key personal growth. Jeremy has tried all major self-help methods, with some yielding lasting impact.
