0Helicopters are some of the most unique aircraft that take to the skies. They can often reach places airplanes and cars cannot, like steep cliffs or mountainsides. They can also dip close to the water or into valleys that are otherwise inaccessible. Many take off from the tops of buildings! That makes helicopters important and exciting rescue vehicles! In this book, readers find out the many rescue missions helicopters may embark on. Full-color photographs show death-defying maneuvers of helicopters and complement accessible, at-level language.