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Just the right amount of detail/info so that if you're not a recording engineer but "only" a musician, you can converse in the same language and at least feel that you have a better than mere rudimentary grasp of the subject.
only read the first half, but what I have read is excellent. If you are interested in location live recording or front of house PA work I recommend you read this book. Lots of practical information for working scenarios for classical music recording.