What can Rodin teach you about decisions — and Rembrandt about humility? The Leadership Codex is built on a simple conviction: leadership is not only a practice, it is a way of seeing. Build the Foundations, the first of five books, lays the inner architecture of the leader — humility, trust, value creation, decision-making, vision, power, clarity, listening, self-awareness, and integrity — in ten chapters, each closing with a field-tested tool and a masterpiece of art. Every chapter follows the same discipline: a concept explored without jargon, real cases dissected without complacency — from Southwest Airlines owning a historic operational collapse to Alibaba rebuilding trust after its 2011 crisis, from Eisenhower's D-Day decision to Mandela's restraint in power — then a practical framework you can apply the same day: the Three Pillars of Humble Leadership, the T.H.I.N.K. Pause, the Power Compass, the Clarity Loop, the Mirror Test, the Integrity Checkpoint, and more. And because leadership is also a way of seeing, each chapter ends in front of a work of art. Rembrandt, Magritte, Rodin, Velázquez, Caravaggio, Poussin, David: ten masterpieces, read slowly, the way a leader must learn to read a team — attentive to the detail everyone else walks past. The tools train your practice. The paintings train your eye. Drawing on sixteen years of international leadership across the Americas, Europe, and Asia — leading intercultural teams of several hundred people through complex, large-scale operations — Carlos Contreras writes for practitioners: first-time managers building their foundations, and seasoned executives who want to rebuild theirs on something more solid than habit. THE LEADERSHIP CODEX — IN FIVE BOOKS I. Build the Foundations · II. Lead People and Teams · III. Execute Under Pressure · IV. Transform the Organization · V. Transmit What You Built This is Book I — where everything begins. Read it. Use it. Live it.