I went to my local Barnes and Noble and saw this on the shelf. I flipped through it and thought of several things about this title. One: it's basically about the Moscow/Rossolimo variation against the Sicilian. Not a bad variation to try against the Sicilian but only if there are clear variation branches describing what to do when opponents try different lines.
Second, the problem I had by looking through this book is variations given are not following a clear set of moves when reading through the annotated games. This is my general impression but I thought the variations given for the games seemed rather on the light side but giving more generalized coverage of why moves are made. I think this was the approach by the author of the book...but in my opinion, if you want serious thorough analysis of variations for an opening line against the Sicilian to study...this book is not quite it. By itself this book is great for the annotated games using the Moscow/Rossolimo vatiation but don't take this book seriously for opening theory study.
By comparison, if you want a good line and great analysis for study against the Sicilian defense...you can't go wrong with The Complete c3 Sicilian by Evgeny Sveshnikov by New in Chess. This gives tons of annotated games for study with short but detailed analysis of lines showing what happens had certain moves been played. But the best thing about this book compared to the one in the new Everyman title is that it comes with a clear variation branch in the back of the book detailing the lines showing where you can quickly find the games for study and analysis. I don't recall if the Everyman title has such a variation branch listing in the back of its book. It does list the names of the players and the games where they can be found...but not a detailed tree listing the variations for those games.
Overall this book is great for overall chess analysis study but I wouldn't take this to be the bible for chess analysis of the Moscow/Rossolimo. I would hold off until a better title gets released if you want to study the Moscow/Rossolimo. My suggestion would be to wait for either New in Chess or Quality Chess to release a similar title if you're serious about studying this line.