The Decision Book

Struggling to make the right choice, whether in your career or personal life? Learn to cut through the noise and think more clearly with fifty proven models for better decision-making, used by top strategists and thinkers at Harvard, McKinsey, and beyond. This book summary unpacks powerful frameworks you can use immediately. You'll discover how to find out what you really want with the personal performance model, understand yourself and others better using the Johari window, and manage your time effectively with the Eisenhower matrix. Stop agonizing and start acting with confidence.

Mikael Krogerus and Roman Tschäppeler are the bestselling authors behind a globally recognized series of books that distill complex ideas into simple, visual models. Their journey began while working at a creative agency, where they developed a shared passion for finding clear, practical frameworks to solve everyday business and personal challenges. This collaboration led to The Decision Book, born from their quest to make strategic thinking accessible to everyone, not just CEOs and consultants.