Respiratory critical care is essential to modern critical care medicine. To successfully support critically ill patients, an understanding of specific lung conditions and syndromes, their pathophysiological basis, and evidence-based management strategies is of vital importance. The Oxford Textbook of Respiratory Critical Care provides an authoritative account of respiratory critical care medicine with a clear focus on how to manage respiratory disease in the critically ill. The fundamentals of pathophysiology, diagnosis, and treatment, for respiratory diseases and conditions are outlined with a specific focus on management in the critical care setting. Across 66 chapters, common and unusual respiratory conditions are included as well as those aspects of pulmonary disease in which the management in critical illness is unique. The text equips the reader with up-to-date knowledge of clinical practice for the respiratory system, lung diseases within critical care medicine and the impact of critical illness on lung biology. Each chapter highlights advances in the field as well as emphasising the importance of getting the basics right. Key messages, controversies, and directions to further research points allow both focused reading and deeper engagement. A dedicated chapter to COVID-19, and sections throughout explore the impact of this novel virus in specific areas of respiratory critical care. Edited and written by an international group of recognized experts from many disciplines, this essential textbook is relevant to medics globally. This is an indispensable guide for clinicians, researchers and nurses working in Critical Care, Anaesthesia, Respiratory Medicine, Acute Medicine, and Emergency Medicine.