I found the overall content of the book informative but sadly the author is unnecessarily crude in his choice of language from time to time. Of more concern is the fact that the text appears never to have been proof-read by anyone before it went into print. The frequency of typos is appalling and when I wrote to the publisher to mention this, my letter was totally ignored. At £14.99 a copy, the reader has a right to expect a far better and more professional presentation the lack of which, in this case, takes away from what might otherwise have been a decent read. Still three chapters from the end I'd had enough of a text that, sadly, will not be retained. £14.99 down the drain, along with much of the wine the author samples.