Book on King' Indian?

Can anyone recommend me a good book on King's Indian defence? The Kotronias series are way too complicated and require ages to get through them.

King's Indian Warfare by Ilya Smirin, and then you can kind of just craft your own little repertoire based on understanding yourself (which you will get from that book)

I have ,,the King's indian: modern approach" by Bologan. It's a straightforward complete repertoire with a lot of new ideas and analysis, BUT it's very drawish. I can recommend it, but you have to look for some deviations for every line where you want to push for more.

If you want a slightly old (mid 2000s) book with a lot of interesting sharp ideas, understanding the kings Indian by golubev is very fun too, he does kind of a comprehensive coverage on the kings Indian as a whole without going to kotronias depth, most of my repertoire is loosely based on that book + whatever I see that looks interesting on chesspublishing

Radjabov still recommends "Zürich 1953" by Bronstein for understanding the King's Indian Defence
There are also older books by Boleslavsky and by Geller.
Another approach is just to study games by Bronstein, Fischer, Kasparov, Nakamura...