Just FYI, I have yet to find a good 'covers it all' audio
book, much less one focused on
theatre sound. The few I have seen that try seem to fall woefully short
in one area or another, for example a
book by an experienced studio engineer and musician that seemed to think themselves a live sound expert and published a
book rife with errors, misconceptions and misleading information.
You have resources like the
Yamaha Sound Reinforcement Handbook that can provide a good overview but that is not going to be a resource to really
address 'how to mix' or 'how to record' or 'how to design/install a
system'. It's great to have some familiarity with multiple aspects but at least initially you may have to look to resources on specific topics. As a
system designer and acoustician, the books on my bookshelf, resources on my PC,
etc. are probably quite different than for someone focusing on mixing or production, what is a good resource for one aspect of live sound may not
address, or poorly
address, other aspects. So just be aware that it may require multiple resources and try to avoid some of the '
jack of all trades, master of none' resources that are out there.