The book "The Life Savers: The Invisible World of Anesthesiology" reveals the invisible work of anesthesiologists. Author, prof. Admir Hadzic, has documented his practice over three decades, capturing moments that normally go unnoticed. The book combines authentic photographs from operating theaters in the US and Europe with reflective texts. It depicts the reality of anesthesiology from preparation to patient recovery, including crisis situations and physician fatigue. The photos are not staged and capture real moments from practice. The book deals with topics such as risk, trust, fatigue and decision making under pressure. The aim is to candidly examine the responsibility of anesthesiologists and their role in sustaining a patient's life.