The Missing Curriculum explores the critical realities of modern medicine that physicians are rarely taught during formal medical education. Drawing on decades of experience in academic medicine, cardiothoracic surgery, healthcare leadership, and physician mentorship, Omar M. Lattouf, MD, PhD, examines the complex non-clinical forces that shape physicians' careers, professional identity, decision-making, and long-term wellbeing. The book addresses topics such as leadership, healthcare finance, physician contracts, organizational culture, systems thinking, communication, negotiation, innovation, ethics, physician burnout, moral injury, resilience, mentorship, and professional sustainability. Organized around the progression of a physician's professional journey-from training and early practice to leadership and legacy-this work provides practical insight, reflective guidance, and interdisciplinary perspectives designed to help physicians navigate the increasing complexity of contemporary healthcare. Blending real-world experience with thoughtful analysis and professional reflection, The Missing Curriculum¿ offers physicians, trainees, healthcare leaders, and educators a framework for bridging the gap between technical medical training and the broader competencies required for success, fulfillment, and responsible leadership in modern medicine.