Yes, I remember the time that Botwinnik/Estrin (1st impression) was the highest wisdom on the Grunfeld, and the Nf3 exchange was considered harmless and meritted only a footnote .

Finally I found some 30-odd games played by Yelena Dembo as black in the period 200-2002, though only 2 wins and quite a few losses. During this time her rating was much lower than it was now. Apperently she soon afterwards changed her repertoire. So I will wait for the reviews, but frankly I don't expect a high quality book like "Play the Kings Indian".

This is a repertoire book from black's point of view:

http://www.everymanbooks.com/display.php?id=432

Everyman claims "written by a renowned expert"

I do object to this kind of advertisement. As I stated before Yelena Dembo hasnt played a game with the grunfeld in the last 2.5-3 years, neither as black or white (white: 1.e4 ;black: Kings-Indian).
IMHO a renowned expert is someone who plays an opening at a fairly high level (OTB or correspondence), and has contributed to the theory of that opening with significant novelties and whose analysis is on public record (in magazines and/or commented games).
For instance: Joe Gallagher might be considered a renowned expert on the Kings-Indian.

I must admit I am a little surprised. I could think of several strong masters who could write a new book on the grunfeld, but Dembo was not on my list. Unless I am mistaken her openingsrepertoire doesnt include the grunfeld at all, in the past few years.
She plays the Kings-Indian as black, and she is an e4-player as white.
I think it is a serious handicap when an author hasnt hands on experience with an opening.

Another book from another woman is coming soon. Play the Grunfeld- Yelena Dembo 

Contents

Part One - The Exchange Variation (1 d4 Nf6 2 c4 g6 3 N c3 d5 4 cxd5 N xd5 5 e4 Nxc3 6 bxc3 Bg7)

1 Introducing 7 Nf3 c5

3 Be3 Systems

4 The Fashionable 7 Bc4

5 White's 7th Move Alternatives

6 4 cxd5 Nxd5 without 5 e4

Part Two - 3 Nc3 Without The Exchange

7 The Russian System

8 Qa4+ Systems

9 Bf4 Systems

10 Bg5 Systems

11 The Solid 4 e3

12 Offbeat 4th Move Alternatives

Part Three - White Postpones Nc3

13 The Fianchetto System

14 Angling for a Samisch: 3 f3

Index of variations