Superb book!  The book is 208 pages, but the pages are big and the print is fairly small.  The printing format is similar to Play the Najdorf by Emms, but the writing style is a bit different.  For one, instead of using the "variation tree" approach, he uses an illustrative games approach and I think he really makes a case for this approach.  He is light on variations, but his choice of games is dead-on.  There is a lot of textual commentary, but I think this actually adds greater efficiency to the presentation.  He provides an excellent groundwork for a repertoire which can become basis for independent research.  Of course, there are some missing lines, but he explains the ideas so well, you can often fill in the details without major difficulty.  One thing I noticed was that Gallagher left out the possibility 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6.Be2 e5 7.0-0 Na6 8.d5 Nc5 9.Nd2 (or 7.d5 Na6 8.0-0 Nc5 9.Nd2) as recommended in Play 1.d4! by Palliser, in which the play is of a different character from the lines he covers in the Petrosian section.  This is very minor and I certainly think this black is OK, but I think this emphasizes the importance of doing your own research, even with a good book.  The important thing is a good book like this really gets to the heart of the important lines, and gives a guiding map through selected parts of the King's Indian labyrinth.  Highly recommended!

I've ordered Joe's book 2 days ago, and can't wait for it to arrive. Could the people who own the copy divulge some more information? Is his book just on the "main lines" or does it include offbeat lines like 4.Bg5 or 5.Nge2? 

And how long is the book? I find it hard to believe it's 144 pages! Seems a little short, but it's probably just right.

main line of classical Nc6. Nh5 vs Bayonet-main lines. also gives Na6 classical; c5 vs Saemisch (Andrew Martin's book wrongly says this is not popular- it is the Saemisch that is not popular because of c5); Na6 Averbach, c5 4pawns, Gallagher/modified Gallegher vs fianchetto. basically, it's all the best lines theoretically

My preordered copy arrived from Amazon yesterday. I couldn't put it down. Joe is such a lucid engaging writer. He believes that everyone benefits from text explanations as well as agebraic annotations, no matter what the readers rating. 
The book does contain a lot of things Joe has written about in other works, however it is advantageous to have verything together, plus the new updated games.
He provides a repertiore with options and fall backs in case something gets refuted any time soon. This is a must for KID players.
Gambit has a new Understanding the KID book due out in May.

The book is out now. Anybody with an opinion about it?

Well, after Joe utterly crushed me with the King's Indian last week he told me it was coming out 'next week'. So you shouldn't have too long to wait. Hopefully there won't be time to get Cox-Gallagher into it......

I have e-mailled Everyman Publications and it turns out that the book is delayed until October.

Better get the stress balls out!

I have pre-ordered it off Amazon, but I have no further info.   

However I was wondering myself what happened to future releases on the Everyman website!