I should perhaps also mention that when playing the Dutch in the 80's I mostly played the Bd6 Stonewall, which of obvious reasons is another weak section of the book.

1) I started to play the Dutch after having read Schwarz's book. That was in the 80's when I was a weak player.
2) I then bought his book on the Morra which I studied more closely. Not good.
3) After having returned to the Dutch a few years ago after having read Kindermann's book (the german edition) I had a look at Schwarz's book. Didn't find anything of interest. The Leningrad section is outdated.

I realize that I was too harsh. Those interested in the Classical Dutch could find some things of interest. Perhaps.

I am afraid Alias' memory has deceived him.

I quote Schwarz on 7...Qe8: (page 8)
<This is the typical Dutch queen manoevre. The queen strives for h5, to assist strongly with attack on the white king. Combined with the pawnformation d6, e5 and f5 black creates chances on the king's wing.
Practice shows though, that an early ...e5 does not turn out well often, as this move usually gives up square d5. With some reservation one could say, that black first must protect d5, before he can take ...e6-e5 into account. Compare the later cited game ....>

Is this explanation really worse, than what Williams gives?

One can find other examples on pages 46, 47 and 59 (why and when ...a5), page 71 and 72 (on the Stonewall), page 173 and 174 (on the value of Bb4+ against the fianchetto), page 177 (Bronstein compares the Classical Dutch with the Stonewall) and also page 309 (Réti on the Staunton Gambit).

It is true, that the explanations are not very systematical, as they are presented as notes in the variations. It is also true, that one can forget Schwarz on the Leningrad. My point is, that the content is even valuable today. Williams, Pinski and I suspect also MacDonald have not made Schwarz' book on the Dutch superfluous yet, concerning the Classical Dutch. Williams' book is a good addition; even combined a thorough database research remains necessary.

Hmm. Pulled out my copy of "Holländisch". It's clearly not as bad as I remembered it. Still, I think Schwarz's books mostly are for people like MNb who like to find old forgotten ideas. (I'm still amazed that he uses an early 80's book for the Bb5 sicilian.)

Rolf Schwarz was a German author of very good opening books. In 1964 he published a book of 389 pages on the Dutch; about 25 of them are devoted on 2nd move deviations and more than 40 on the Staunton Gambit. As he mentioned everything he could lay hands on, he is still a good source. I mean, where can you find something like 1.d4 f5 2.g3 e6 3.Bg2 Nf6 4.Nf3/4.Nh3 c5 ? Exactly, in Schwarz' book.

A very good book on Dutch deviations is from Kindermann the Leningrad Dutch. It gives good lines against 2 Nc3, 2 Bg5, stonewall, etc. I think this book is a must for all Dutch players who do not want to avoid the anti-dutch lines, by playing 1 .. e6 or 1 .. d6.

Andrew Martin's book, The Contemporary Anti-Dutch, was nice at the time, but is outdated now. Bellin is also outdated with regard of the anti-Dutch lines.

I also have the Bauer and the Shipkov CD's but I do not know out of my head if they are any good, if you want to play .. b6 - Dutch lines. I will look at them over the following weekend.

Bellin is covering some of the Dutch Indian and other lines you are interested, but just in a couple of pages. Have you already looked at Schwarz? He sometimes has very detailed coverages about forgotten theory.

there is the out of print Andrew Martin book, The Contemporary Anti-Dutch, which will be on ebay later tonight.