Queens Gambit

Hi, 

Can anyone suggest a good book on the queens gambit?

I prefer books that explain the ideas in the opening, and explain the reasons behind each move, rather than just go through countless lines.

Thanks

Sadler's book is very good - if you are talking solely the QGD. I would guess you could get a used copy for cheap.

If you are talking the entire 1.d4 d5 complex then Schandorff's book is excellent.

I absolutely, 100%, no doubt about it agree with both your sentiments.

But it's probably worth noting that the target audiences for the two books couldn't possibly be more different.  Sadler writes, move by move, in a Socratic Q&A style designed to give beginners a very thorough "stakes a claim in the center", "threatens the pawn" kind of understanding.

Schandorff is targeted at the 1800 and up crowd, ready to jump into theory-heavy, critical mainline stuff.

Sadler also had a slav and semi slav book - these will be outdated but the plans and explanations are good.