Thanks for the short review, @jamesb007nd.
In all fairness though, there is perhaps not a lot a seasoned fan with decades of Internet connections and discussions can learn from a relatively short book - while a new fan who may not even have watched all films or read other books on the topic, may actually find such a brief overview interesting and inspiring. It depends what one is looking for and what kind of basic knowledge there is already. Really new angles, new information are rare these days - though they do happen to pop up in the weirdest fashion time and again…