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The Decision Book: Fifty Models for Strategic Thinking

A compact workbook of fifty visual decision-making models drawn from business, psychology, and philosophy that help you structure complexity and make better choices about yourself, others, and the world.

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What it’s about

The Decision Book distills fifty of the best-known and lesser-known strategic-thinking models into a hands-on workbook you can fill in, cross out, and adapt. Organized around four practical aims—improving yourself, understanding yourself better, understanding others better, and improving others—it gives you tools like the Eisenhower matrix, SWOT, the flow model, cognitive bias checklists, the prisoner's dilemma, and situational leadership. Rather than handing you answers, each model asks questions and reduces the complexity of a situation so you can concentrate on what matters. Whether you're preparing a presentation, running a performance review, choosing a partner, or reassessing a business idea, this book turns vague chaos into structured, visual, decidable problems.

The through-line

Who it’s for
A busy professional or thoughtful individual who must constantly make decisions—big and small—and wants a reliable way to structure, analyze, and act on them.
The problem
Facing chaotic, complex, and ambiguous choices without a clear method to weigh options and decide. Feeling overwhelmed, indecisive, doubtful, and afraid of making the wrong choice.
The plan
  1. Pick the entry point that fits you—trial-and-error (improve yourself) or theory-first (understand yourself).
  2. Choose a model that matches your question: efficiency, self-knowledge, understanding others, or leading others.
  3. Copy out and fill in the model with your real situation, treating it as a set of questions.
  4. Interpret the visual result, decide promptly, and communicate the decision.
  5. Later, compare expectations with outcomes and revise using feedback and double-loop learning.
The payoff
You work more efficiently, decide faster and more confidently, know your strengths, and understand and lead others well while staying responsible for your own values.

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