@Fllg: I would really like to know where you found these mistakes, as after your comment I checked my copy a bit and could not find any of those in the first chapter. The only slight mistake I noticed so far is on page 64, in the comments to 9. ... Re8 where at the end Bologan states "returning the pawn and retaining the initiative." It would be more appropriate to "regain" the pawn.
Anyways, I am impressed by this book and I think it is worth it's money. There is plenty of material for any Ruy Lopez connoisseur that is maybe not that much explored. For example, against the Exchange variation, he gives 5. ... Ne7 and 5. ... Be7, which I had not expected.
I will check more carefully through the Marshall lines once I have time to do that, but I would like to adress one thing that some people moaned about (see for example Reply #15): The book rightly says "how to play for a win" and I think Bologan does his best to offer enough material so that every player can chose what he wants to play. It may be true that there are some lines, especially in the Marshall, which result in equal endings. But that is the character of the opening. You can't blame 1. ... e5 that it doesn't always retain winning chances if White plays the best moves! But I came across an interesting thought while reading this comment. Some players fear the Marshall attack, most famously Kasparov. So, by reading this book and remembering how to draw those endgames is in some kind also preparing to play for a win because your opponent might play some Anti-Marshall system because he is not satisfied with such a draw! And if you really play against a lower rated player that would be loving to draw against you, you simply play the Breyer or something else.
I hope that everyone will get my point.
Anyway, I will come back and hopefully have some thing to say about the analysis! What I noticed though, is that sometimes a line stops with a comment like "with the idea of a6-a5" For me that is not a concern, as I can not demand from Bologan that he stops every line with a plan for Black, especially in the side lines, but I could imagine that some players might find that unhelpful.
What I read recently was some comment by a strong GM and apparently a friend of Bologan who said that "he overestimated his own chances 20 years ago, like he does today often, too" along those lines for sure. I hope that this does not influence his writing
Any thoughts?