This book focuses on the Von Henning Schara Gambit against 1. d4 and the Center Counter (Icelandic and Porteguese Gambits) against 1. e4.
In general, both of thses lines offer very interesting counter chances for a player of the black pieces willing to invest a pawn to unbalance things. This is very important if you are attempting to play for a win with black, rather than just holding a draw.
I am not much of an expert (yet) in the Von Henning Schara, but I done extensive studying and playing the Center Counter (Icelandic Gambit and Porteguese) System featured in the book. I have to take exception with some of the other reviewers, I thought that the book actually seemed rather thorough compared to many of the other books I have read on the subject.
What really impressed me was the amount of analysis available on some of the sideline variations leading to the main line. (I have encountered these specific variations quite frequently, both over the board and on the internet).
My feeling on repertoire books is that their job is to get you acquated with a system by explaining the key ideas, and then provide a number of illustrative games to see the ideas in action. This book does an okay job of fulfilling that objective.
Beyond that, if you want to find some highly obscure line it is time to consult a specialized database and find those games yourself. I don't think that a reasonably priced, normal sized book can provide that level of detail.
Overall, this is a pretty decent book. It is probably best suited for players in the rating range of 1300 - 1900 USCF.
