dont start your opening repertoire without reading this book
this is an excellent book to be read before planning to build a serious opening repertoire , it will save you lot of time and efforts and normal pittfalls .....he is not suggesting any opening to use but teaches you what should you consider when planning your repertoire .....an advice dont start buying openings books before reading this book , its a great help....it answered all the questions and more that passes by any serious intermediate player in studying opening theory, in fact i didnt find any book that delivers even the same topics under one ambrella.