I had a hardback copy of this book when I was a kid and learnt a huge amount from it (h'cap got down to 3 for many years) and I saw a copy advertised for just 1p + p&p. It's in super condition and was delivered very quickly. This must be the bargain of the year! The basics of golf never go out of date and Ravielli's fantastic drawings bring the text to life. A must for all golfers of any ability.
The "hawk" is a golfing legend, and his instruction book is a golfing classic and well worth reading by the keen theorist. However, bear in mind that equipment, analysis and the use of video have moved things on quite a bit since his day. Ben did not, in fact, exactly practice what he preached, as is demonstrated by film footage of his swing. If you want a really helpful golf instruction book try Swing Like a Pro.