I have read everything I can get my hands on about Tesla. I first learned of him during my course work at University. The basic unit of magnetic field is named after him. He developed alternating current, radio transmission and FM radio, wireless transmission of electrical power; he was ahead of Roentgen in the invention of photographic process of producing x-ray. He is known for the Tesla coil, induction motor, rotary transformers, high frequency alternators, the Tesla oscillator and many more. This is the newest biographical book on Tesla. The book covers both the biographical life of Tesla but goes into greater detail about the technical aspects of his invention and theoretical work. In fact it could be titled the history of electricity in the 19th and early 20th century. The author takes the reader into the scientific mindset of the 19th century and compares it today. The book is objective and even handed about Tesla's accomplishments and life. I find this objectivity critical to any book about Tesla as in recent decades he has been mythologized in the public imagination. The author goes into great detail about the various ways inventions are created by inventors and why some need marketing to create a demand and others do not. Professor Carlson also explained that Tesla like many inventors needed a business person to keep him focus on feasible inventions and provided the financial backing and marketing. Unfortunately for Tesla the key business man in his life died when Tesla was at his peak and Tesla was never able to replace him. But the patent attorney stayed with him for years. I enjoyed reading this book; it gave me an excellent understanding of Tesla's inventions and theories. A caution to those readers that are less technically inclined this book is heavy into technical detail but written in an understanding way. I particularly enjoyed the last two chapters of the book, I thought Carlson did an excellent job of summarizing all the data he presented and his notes by various books about Tesla are helpful. Tesla's work has pioneered the way for many inventions in the past few decades that we take for granted. He was a man ahead of his time. I read this as an audio book. Allan Robertson did an excellent job in narrating the book.