Gueler wrote on 03/11/10 at 22:20:34:
In my opinion that's not the question. Kosten's book tried to provide a easy to learn opening repertoire, with a solid overview of plans and strategies, which I think would be suitable for players in the 1600-2000 range who previously didn't have any or only limited exposure to the English. Maybe it would be beneficial to players above 2000 but I would have to assume that the value decreases, the higher you get on the ELO ladder.
I find this paragraph sort of interesting. At some point, as players get well above 2000, perhaps opening repertoire books don't really make much sense? You can try to memorize another players repertoire, but at what point is it easier to create your own for your own strengths and weaknesses using chessbase or aquarium? For better players, it is probably just as easy to learn with the later, and more rewarding as well. I expect most grandmasters did not become grandmaster by memorizing the repertoires of other grandmasters. Rather, I think they memorize critical games / positions and how to exploit that, which is what we can see illustrated in Karpov's English opening book.
I can't help thinking that some of the longer repertoire books are basically self indulgent. The player writing the book is trying to find the "truth" for them, for their perfect way to play. But another player can't pick that up, memorize it, and be happy. The whole point of such in-depth analysis it seems to me, is to find positions that suit you, not the masses, so I am not sure how appropriate it is to cash in from this personal quest.
In that way, I think these shorter books can be more valuable in that they point players in a direction, and verbalize ideas. Kosten's book was very popular as it did this. I hope this new book turns out like that as well (if it ever gets translated into English). A monograph on the current state of theory to a limited depth in the opening is very interesting as well (like Bagirov's English books, or perhaps Watson's which I don't have). I just struggle to see the point in the longer works that aren't of a reference nature, I rarely think a good chess book is too short, but I do think some types of books can be way to long.