Reddit mentions of Sound System Engineering 4e, Fourth Edition

When you've gotten through those, and have a handle on the material, I'd recommend Bob McCarthy's Sound System Design and Optimization, Davis' Sound System Engineering, and Ballou's Handbook for Sound Engineers.

sound reenforcement handbook for fundamentals

https://www.amazon.com/Sound-Reinforcement-Handbook-Gary-Davis/dp/0881889008/ref=pd_bxgy_14_img_3?_encoding=UTF8&pd_rd_i=0881889008&pd_rd_r=CCG9CPVAPDH3ECTFGHMA&pd_rd_w=C5R8y&pd_rd_wg=5hRnU&psc=1&refRID=CCG9CPVAPDH3ECTFGHMA

system set up and optimization

https://www.amazon.com/Sound-Systems-Optimization-Techniques-Alignment/dp/0415731011/ref=sr_1_1?ie=UTF8&qid=1496423594&sr=8-1&keywords=sound+system+design+and+optimization

deeper fundamentals and underlying theory behind systems,

https://www.amazon.com/Sound-System-Engineering-Don-Davis/dp/0240818466/ref=pd_sim_14_10?_encoding=UTF8&pd_rd_i=0240818466&pd_rd_r=HSPA70XSS4QNR9DZF1P5&pd_rd_w=5ywPt&pd_rd_wg=X1Td5&psc=1&refRID=HSPA70XSS4QNR9DZF1P5

approachable fundamentals, but not too much deeper theory - kind of a up and running style of book

https://www.amazon.com/Ultimate-Operators-Handbook-Guides-online/dp/1617805599/ref=cm_cr_arp_d_product_top?ie=UTF8

Recording Studio Design. Philip Newell

Acoustic Absorbers and Diffusers. Cox/D'Antonio

Room Acoustics. Heinrich Kuttruff

Sound System Engineering. Davis/Patronis.Jr/Brown

Home Recording Studio. Rod Gervais

Master Handbook of Acoustics. F.Alton Everest

Some are heavy on the acoustic theory some are more practical but all really good resources. I'd also second the John Sayers forum.

> Things of an acoustic nature would be nice as well such as room construction, speaker/instrument/mic placement and so on.

sound system engineering (davis/patronis)

The holy trinity on my bookshelf:

The Black Book - Yamaha Sound Reinforcement Handbook

The Green Book - Bob McCarthy's Sound System Design and Optimization

The Yellow Book - Don Davis's Sound System Engineering

And the apocrypha:

The Blue Book - Everest's Master Handbook of Acoustics

Edit: a link

Listen to @mrdoom, a pro sound contractor is what you need. It is an old book but you might find it online. It was known as "The Big Yellow Book" written by Don & Carolyn Davis of Syn Aud Con many, many years ago. The title is "Sound System Engineering". https://www.amazon.com/Sound-System-Engineering-Don-Davis/dp/0240818466/ref=dp_ob_title_bk It details the math and physics needed to build a system that actually will work for the environment you been contracted to produce clean, intelligible sound in. Good luck, you might just learn something cool from it.