Value, light and shadow learning
Im currently teaching myself art with book and tuts and such, and i hit a roadblock, called value.
I havnt been able to find any books that specifically focus on value, light and shadow, for painting more specifically digital painting.
So far value is my biggest weakness, so im looking for anything that can stop the guess work, i want to know when to use what, grey percentages, value keys, basically control.
Anyone know of any good books, tutorials or any processes on how to teach yourself value?, because alot of people i have spoken to say experience, and photostudies, but i want more control then that.