This book pefectly illustrates how a chess opening book should be written. It starts with a chapter that explains typical plans and structures arising from the Sveshnikov. The best part of this introductory chapter is the explanation by the author on where the different pieces are best placed ,what piece exchange to be avoided and what piece exchange is favorable. For example, the chapter states that black should generally avoid an opposite colored bishop positions; and it si favorable for black to exchange her dark colored bishop for a knight. Needless to say, reading this chapter alone will significantly improve your knowledge of the Sveshnikov.
The next chapters give enough theories and grandmaster games. If you read the introductory chapter and grasp the ideas, memorizing the variations becomes a lot easier. Of course, the author continues to give the ideas behind the variations which also help a lot to retain the variations in your head.
If you feel that you are comfortable playing positions with structures like f7,f6,e5,d6, with the king uncastled, then Sveshnikov may be a good opening choice to be added to your opening repertoire, and if you do decide to play the Sveshnikov, this book is a must. This is better than the chessbase training program with the same subject.