Williams didn't cover 1 d4 d5 2 Nf3 Nf6 3 e3 Bg4

I do not know very much about the guy. I do know that one of my games where I got destroyed was in one of his opening books 

But I have his books on Dutch and French. I have seen some commentary on Gibraltar Open for example. He is the guy who says "Harry h-pawn" and those stuff, so my impression is he really likes attack.

Which I find very rare that he does DWD on Colle. My guess is he will try to attempt kingside attack with the b3 system, by putting knight on e5 and go f4 (¿).

My order of Pavloviç book Modernised Colle is in shipment, so waiting for that one. But then does Pavloviç play Colle unlike Williams ¿

I do not buy DWD as much because they cost as much as paper books. Would need more detail though, inhalte does not show too much, so I still deciding.

Leon_Trotsky wrote on 05/21/19 at 02:21:59:

The Colle-K is rather an inferior sideline of the Meran with colours reversed and an extra tempo: 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Bd3 Bd6 (advocated by IM Walter Shipman).
Worse, as soon as White plays the thematical e3-e4 play becomes a French Rubinstein with a tempo down for White. So I question GM Williams' choice of Colle-O'Hanlon as an illlustrative game; it's hardly typical.

I thought you made a copy/paste error, missing out on Sidelines 01 and Sidelines 02. But I see it's the same in the ChessBase shop listing. I find it strange that the title is Colle-Koltanowski, the "Instructive Games" are the Colle-Koltanowski, but the "Main Setup" is the Colle Zukertort. Couldn't he find any instructive games with the Zukertort?

By the way, are Colle-Koltanowski and Colle Zukertort the generally accepted names these days? When I learned them, they were simply the Colle and the Zukertort, respectively. Koltanowski himself always referred to the first as simply the Colle System, and I don't recall any games where Edgard Colle played the Zukertort. Please somebody correct me if I have my facts wrong.

Koltanowski, in his book on the Colle and in his own games, advocated 3.g3 against the King's Indian, as both safe and promising. It doesn't bring white the typical kingside chances as in the Colle, but then again neither would 3.e3.

In the Colle, I notice that against 3...Bf5 he evidently goes with 4. Nh4 (hmmm).

Regarding 1.d4 Nf6 2.Nf3 d5 3.e3 e6 4.Bd3 c5 5.c3 Nc6 6.Nbd2 Bd6 7.0-0 0-0 8.dc Bxc5 9.e4 for which he uses Koltanowski-Defosse (9...Qc7 10. Qe2 Bd6), one might wonder how much he has to say about 10...h6.  (As a historical bit, it has been almost 30 years since Jeremy Silman opined that that is a complete answer to the Colle, after playing it in a match against Colle specialist IM Doug Root.)

I have a few of Williams' books, but not familiar with his DWDs. Anyone have this Colle DWD ¿

I know that he likes to attack a lot, but this opening is not exactly most aggressive 

I notice that after 3...Bf5 Pavlovic has played 4. Bd3, against which his opponent chose 4...Bg6.  (An old bit of theory which stuck in my memory is 4...e6 5. Bxf5 ef 6. Qd3 Qc8 leading to equality as in a game Alekhine-Euwe.)