Kasparov offers objective assessments of the most important thematic ideas throughout the book. Because of its focus on plans and long-range maneuvering, the hedgehog is more of a high-level opening than most. This book is for more advanced players, rather than for beginners. The abundant amount of diagrams will allow strong players to read the book without using a chessboard. However, I recommend buying the ebook of The Hedgehog, because it can be used as a foundation for a repertoire database that you can build based on your own experiences and analysis.--Mark Donlan "ChessCafe.com "