Bias Handbook

This is our biggest visual update yet. NEW — A diagram for everything Every bias now has its own visual diagram: a clean, color-coded schematic that captures the idea at a glance. NEW — The Frameworks tab Bias Handbook now helps you act on biases, not just recognize them. We've added 12 of the most trusted frameworks in behavioral design, each with its own diagram and a complete, practical guide: COM-B • Behaviour Change Wheel • Theoretical Domains Framework • BCT Taxonomy v1 • EAST • MINDSPACE • Nudge • Fogg Behaviour Model (B=MAP) • Self-Determination Theory • Dual-Process (System 1/2) • Theory of Planned Behaviour • Transtheoretical Model Each framework includes: • A clear visual diagram of how the model works • Every component explained in depth — what it means, why it matters, and how to assess it • Ready-to-use diagnostic questions • A detailed, end-to-end worked example • An implementation playbook with reusable templates and checklists • Use cases, evidence, and common pitfalls with fixes • Hands-on exercises to practice • A full citation to the original peer-reviewed or government source We've also enlarged the framework badges and polished the browsing experience throughout. Thanks for using Bias Handbook. We're adding new content regularly — and we'd love your feedback.

Welcome to Bias Handbook — your pocket reference to the cognitive and behavioral biases behind every decision. • A color-coded library of biases, fully searchable • Bias of the Day, fresh on the banner each day • Bookmarks and personal notes, each with a dedicated tab • Daily reminders to learn one bias a day