CM questions and related Roland Spot Color q.

I'm still wrapping my head around color management. I realize there always needs to be a working color space unless its a device link. Right now in my shop there has been no color management, we've strictly used Roland Spot Colors and VS300's. Now I came onboard rather later and with some research I figured out the obvious,we need some kind of color management solution especially since we are expanding to different kinds of printers, materials etc.

The first question I have is about semantics. The "target" profiles in VersaWorks are the "input" profiles correct? (Sort of like ONYX). These are our working color space profiles right? To me this means that the embedded document profiles either have to override the input profiles, or vice versa, or interact in some way that is not clear to me.

The second question I have is that the Roland Spot Color system is really just a cmyk table isn't it? It's still affected by whatever working space -> output profiles you use.... So what working space profile is required by Roland Spot Colors? RolandSignCMYK? SWOP? etc.

Finally are there any books recommend for color management?

Thanks guys! I'm so happy I found this site!