If you already are studying for your Private Pilot Licence or if you are still thinking about going for a trial lesson or if you are simply a helicopter fanatic, this book is a great read. Even difficult technical issues are explained very clearly - with many excellent line drawings. There is lots of practical advice on the how-to, spiced with many real-life stories. The theory and regulations are one thing, but in practice many other issues arise (or don't, as the matter may be). And everything is written in a fantastically entertaining way. For instance, there is a neat trick for smooth landings - namely to maintain just a very slight amount of forward speed on touch-down because humans have their eyes in front and can therefore judge depth better when moving forward, but extra-terrestrials (with differently located eyes) are told sort this out for themselves. :-)