Key Features * Sets the standard for training and competency of this emerging, yet scientifically approved non-invasive technique of ultrasound with all the essential information on how to perform ultrasound and interpret the images obtained. * Features clear and didactic images demonstrating echo findings in various situations along with videos of diaphragmatic ultrasound offering a unique "window" on mechanically ventilated patients, allowing to take important clinical decisions on ventilatory modes and assistance by pulmonologists, critical care specialists, thoracic surgeons, emergency medicine specialists as well as trainees. * Includes a chapter on pediatric ultrasound along with ultrasound of other respiratory muscles (i.e., intercostal and abdominal) which is emerging as a useful complementary tool.