Principles In Action

Experience the best-selling book in a radical new format

App Store

Available on iPhone and iPad

Tablet and phone Ray Video

Learn to apply principles and achieve your goals.

Experience Ray Dalio's bestselling Principles: Life & Work come to life as a free iOS app: Principles in Action. It combines the full text of the book with interactive videos of actual situations at Bridgewater so you can experience the principles in action.

“Ray Dalio has provided me with invaluable guidance”
Bill Gates
Case Studies

Experience Principles in real life through interactive case studies of meeting at Bridgewater Associates

Case Studies

Learn how to develop your own principles and practice better decision-making using a digital “Coach”

Case Studies

Complete, searchable text of the #1 New York Times bestseller Principles: Life & Work at your fingertips


Also included

Economic and Investment Studies

Watch an animated video and read Ray's in depth studies on how the economic machine works.

4 Iphones
Principles In Action Tablet

Download for free today

App Store

Available on iPhone and iPad

Learn more about Principles

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Principles for Success

Order Ray Dalio's Principles Today

Principles: Life & Work

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Life & Work

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Principles for NavigatingBIG DEBT CRISES

Big Debt Crises

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