Any good reading material (actual copy not online)

A book you say?... sounds like very old technology...

Kindle, Kobo, tablet... does it have to be colated painted tree shavings?

I think this 'book' thing is a typo that his spellcheck failed to pick up..

Bob McCarthy's Sound Systems: Design and Optimization

The JBL 'PA Book' (or better, Sound System Design Reference Manual) and EV PA Bible - but you´ll have to download and print them out yourself.  

+1 for printing, if you have access to a good b/w laser printer and a comb binder.
If you google for bob mc carthy, he has written another book for eaw some time ago, that also has a lot of good info to start, and is a bit less heavy than his (excellent) grand tome

hi
i started building my system and learning this craft a couple years ago, I wish i had read more manuals and less forums in the beginning.
i've read the yamaha, jbl and ev handbooks online and then bought real copies of Mc Carthy's sound system design and optimization and Dickason's cookbook.

You could start with ev and yamaha handbooks in pdf, they are quite simple and contain the basics about soundsystems.
the jbl soundsystem design refernce manual, still a free pdf, goes more into detail with physics and acoustics involved.
With this foundation you will be ready for the Mc Carthy book, even if it targets big scale operations it contains a lot of unvaluable infos, and he is very good at making difficult concepts easy to understand, and with a nerdy humor too.
The Dickason book goes very deep into closed, reflex and bandpass design principles and even trensducer building, and although it requires more math that i can handle, you still can get the principles even if you can't read every equation.

I'd be curious to read about Acoustics, i think Olson (?) is one of the authors to read, but i think it's still too math for me...

now is there something with the same authority as the Mc Carthy or the Dickason books, but about horn design?
I have been reading various papers by Don Keele and Others, but many are very old and some are surely outdated, and they are clearly aimed at fellow engineers so harder to get than the previously mentioned books for a non engineer like me.