/ic/ - Artwork/Critique

move one to draw in photoshop ,i am already used to make line in whitout stabilization but i still using magic wand method like the one that i usually use in SAI, soo idlike to ask some question
>how to learning value , and maybe some book or something?
>do you coloring greyscale with brush or just using selection tool to coloring?
>do you work the grayscale in several layer?
>do grayscale is a spoiled method?
>if yes , what the best method ?