I agree that it looks a bit odd exposing the queen like that. I think I just checked the variation given by Eric and thought it looked fine for Black. And the piece sac didn't look too dangerous.

The variation you give seems like a good way to play for Black, and it is similar to a sub-variation I gave above, after 5 ...e5!?

Sorry, for some reason the comments have ended up in the wrong place, i.e. in front of the wrong moves. The interesting continuation is:
(instead of 7. Bg5)

Yup, never thought anything else. But what I've been playing so far hasn't really been how I think corr chess normally is. I've played on my phone using an app. Most people deviate from theory after move 2 or 3 or similar...

However, the game took another direction. I will post some analysis later this week.

I hope Santa Claus brings you the book anyway. Merry xmas!

I haven't seen a topic dedicated to this book yet, even though there have been comments on it in some threads. Any opinions, lines that seem good, and perhaps some that are not so good or even worse?

Btw, I have noted a side line, not even mentioned in Dealing with d4 deviations. Because I am playing a corr game in this line right now, I can't give details yet, even though it is not a serious server. I currently play Black in this line, and I am not that thrilled about the position now that I have analysed it more thoroughly (should have done that before going down the line...). It might actually be pretty scary for Black. I think White would have a much better record OTB in it. At first, the computer favours Black, but later changes to about equal. Still, I have my doubts if it can be won for either side in corr. I'll let you know later.