Winning debut repertoire for young champions

How do chess players and chess players build their debut repertoire?
Grandmasters choose debuts based on practical reasons, given their ability to attack and defend, play endgame, be prepared (or unprepared) for a long struggle.
Fans most often simply imitate their idols and prefer popular systems popular at the moment. It is difficult to imagine a more ridiculous approach! Fashion systems are constantly being improved, complex novelties are regularly used in them - their mechanical repetition cannot help achieve high results.
At the same time, there are correct, insidious debuts for the opponent, which in our time, for various reasons, have faded into the background. It is from such debuts that it is most profitable to create your repertoire for future champions. This book offers chess players a carefully thought-out and already built complete debut repertoire that helps to achieve tournament victories, driving rivals in well-learned positions with thoughtful plans of the game.
For a wide range of chess fans