Rob - thanks for the endorsement. But, you know, I hate to state the obvious, but- if someone wants to REALLY LEARN Logic inside out, nothing, and I mean NOTHING, is as in depth as the manual itself. It covers everything. Granted, it is very long and not particularly an attractive or exciting read. But I think every Logic power user in the world will agree that, no matter how experienced or well you know the program, flip the manual open to any random location, read a couple of pages, and you're guaranteed to stumble onto some obscure nuance or command or long forgotten feature.
So, to Smeet - I would say that if you already know Logic fairly well, but want to round off your knowledge and fill in all the holes; set yourself a realistic goal for covering the manual. Like maybe read a chapter a week - or whatever pace suits you. Even if it takes a year, or more. And eventually you will have it all covered. Now granted, you need to also practice what you are reading, apply it, play with it, experiment with it. But ultimately - it is all in the manual.
David's book is excellent. I've read it and am certified as well But the thing with David's book is - and the same can be said for every third party book - no matter how well it is written and how much territory it covers; it is only a subset of what the entire program can do. Add to that the fact that the manual (deliberately) delivers the material in as neutral a way as possible. It covers using and creating apple loops with the same amount of depth as it does setting up transformer parameters, programming the ES2, or creating a multi stave score. It offers as neutral and objective a Logic education as is possible. And because of this - I would suggest that it offers more of "user-centric", or "user-focused" learning than any other third party material available. You read it, and you ultimately get out of it what your intelligence, talent, perseverance, and dedication allows.