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Five dials. One framework. The book that maps why people - including you - do what they do. Available in paperback, ebook, and audiobook.

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The Book

Human Math

The Hidden Logic of Why People Do What They Do

Most of the friction in your life - the recurring fights, the coworker you're half-convinced is pretending to be a real person, the reason you keep burning out in the exact same way - usually boils down to one simple, irritating fact.

You think everyone else is running the same operating system as you. They aren't. They are literally, biologically, running different software. And nobody ever gave you the documentation.

This book is the documentation.

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Human Math by William Lancaster