Hi,

I am an engineering student working on a project for a non-profit
organization in which they want to convert a couple of rooms into a
cafe/social room for their clients. One of the components of this
cafe/social room is a sound system, both for recorded music during the
day, as well as for hosting live groups on a weekly basis. Having
almost no knowledge about sound systems, and finding so much stuff
online that I don't even know where to begin looking, I'm wondering
what kinds of resources everyone here can suggest. I need information
about systems (speakers, amplifiers, mixers, etc), but what is more
important, I need to find something on sound theory - based on
size/shape/composition of the room, what kind of sound will be best -
pros and cons of wall-mounted speakers vs in-ceiling speakers, etc.

What kinds of resources can you suggest for me?

Thanks,
Phillip