This may be White’s most effective all purpose opening, playable against most of black’s replies. Understanding the strategies and themes are more important than memorizing variations. Because of this, the analysis in this publication of 1993 is not very out of date. This book was written by grandmaster Henley and contains over 400 complete games. It is in algebraic notation. Apart from trivial bumping to the rear outer corners (but not pages) it is in almost like new condition. Lowest price on eBay as of late October 2024 is $11.99.