Guides

Hey all!

I hope this question is alright. I'm pretty new to icon making, and I was wondering if anyone knows of any good guides to help me.  I'm looking for ones especially for coloring (curves, color balance, selective coloring), but any guides at all are good.  There are a whole bunch of tutorials on how to achieve a certain specific effect, but I'm looking for something basic, that'll just tell me how to use certain features and give me tips. I hope that makes sense. In other words, instead of something like this that just tells me how to get from a base to an icon, I'd like more general guides like this or this. In other words, I want to know why you make the decisions you do when you make icons. For example, what exactly does selective coloring do, and how do you choose your settings? I know there are plenty out there, but they're kind of hard to find.

I use PhotoPlus 8, which I know not many people use, but that's why general guides are so nice. It has most of the features that most other programs have, and though the way you use them is often different, I can usually figure it out.

Thanks so much!