Not until Marconi has there been an in-depth biography that focuses on the inventor as businessman/entrepreneur and the global race that took place in an effort to dominate and control wireless technology. From the end of the Victorian Era to the First World War, Marconi would take center stage as he perfected the science of sending signals over longer and longer distances. As a result of Marconi's first "electrical" triumph at the age of twenty-one, he gained ever-increasing attention from powerful interests, including governments, who sought to obtain the keys to the new science from him. Marconi, the "father of radio and radar" would create an industry dominating enterprise that would last for over a quarter of a century. Utilizing important though little-used documents, author Calvin D. Trowbridge Jr. has brought a new perspective to the scientific life and business times of Guglielmo Marconi, proving why Marconi is considered to be one of the most influential people in our history.