The aim of this book is to educate and train practitioners in the safe and professional use of diagnostic ultrasound imaging in the visualization and interpretation of various cerebral conditions not only in neurointensive care, but also in the operating room and, in general, cardiothoracic and neurocritical care settings. It is chiefly intended for anaesthetists and intensivists with a basic knowledge of ultrasound physics, but also for neurosurgeons and neurologists. All chapters were coordinated by the Editors, with experiences in hands-on courses on Echography and Doppler of the Brain, and prepared by international experts. The book covers from basic principles to estimation of intracranial pressure and cerebral perfusion. The topics cover emergency department and prehospital brain US as part of POCUS and US multiorgan evaluation to general intensive care, neurointensive care and anesthesia, including special populations as pregnant and children and setting as LMIC. Clinical scenarios complete the book. An innovative and unique guide that equips readers to perform bedside and non-invasive assessments for a range of cerebrovascular diseases.