Maybe I am not fair (about the 1 star rating), because I did not read this book from cover to cover. Let's be fair: cadogan (or everyman) makes great books, including about the QGA. But this entire "easy guide" series is a little misguided. The back cover says: "just enough detail and explanation to play an opening with confidence". Not true. The book starts with typical QGA positions. I went trough them: they have practically nothing in common. Each chapter starts with some other positions, then the author gets to the "theory", which is absolutely not exhaustive. I am glad I did not buy the "scheveningen" easy guide as well. Conclusion: if u know how to play the QGA already, maybe there's something for you in this book. For the rest: find something with more meat.