Fun-Sun F. Yao, MD, FACA, is an eminent anesthesiologist best known as the founding editor of Yao & Artusio’s Anesthesiology: Problem-Oriented Patient Management, a widely used reference in the field. He has held academic appointments in major medical institutions and contributed extensively to the advancement of anesthesiology education and clinical practice. Dr. Yao’s work emphasizes critical thinking, evidence-based management, and problem-solving approaches in perioperative care. His pioneering educational style has influenced generations of anesthesiologists and established the problem-oriented format as a model for medical teaching in anesthesia.