 It covers the technology of radar (RAdio Detection And Ranging), and argues how it determined the outcome of some very infamous WWII battles (e.g., the Battle of Britain, the Battle of the Atlantic, the Battle of Midway) and eventually led to Allied victory in the war.It also includes information about how radar technology led to major innovations in space exploration during the Cold War era.In the book, Buderi demonstrates masterful knowledge of the topic and solidifies his position as a prominent radar historian.