Cognitive Biases I: How the Mind Distorts Facts, Judgment, and Confidence

We like to believe our decisions are rational. They are not. Human thinking relies on mental shortcuts that distort judgment, inflate confidence, and create the illusion of certainty. These distortions - known as cognitive biases - influence how we interpret information, evaluate outcomes, and predict the future, often without our awareness. This book is Volume One of the Cognitive Biases Series. It focuses on the core biases that shape first impressions, confidence, and decision-making. Each chapter delivers a clear, practical breakdown of how a specific bias works, why it matters, and how it quietly influences real-world choices. The goal is simple: sharper awareness, better decisions. This volume sets the foundation for the deeper social and behavioral biases explored in the books that follow.