I am disappointed by this book. A few months ago I got very excited about the Sicilian Kan openning and was dying to try it in competition, and was looking for a good book to guide me through the learning curve. With this book, I expected a lot considering the 5 stars that it has received in the previous two reviewers. However, from black's point of view, I believe John Emms book is severely lacking in content. It appears to me that the author is clearly more biased for the white pieces rather than the black's point of view, which is seen by the substantial analysis given from white's perspective. I am going to buy the Ali Mortazavi book on the Kan, hopefully it will give me a more balanced view on this new and dynamic openning. If you want to learn on how to beat the Kan openning, buy this book, but if you want to win with it, better save your money on something else.