Some of the slides from my color shading/rendering lecture.
Free education!
Admins Notes// I recommend that any artist of any level or style practice materials. Light, shadow and reflection affect different objects in strikingly different ways-and mastering those differences could up the quality of your art ten fold!
These are also useful; http://www.youtube.com/playlist?list=PLV2X3tgajVlHkH3FHxm3rLZWqScFTRhtv
and; http://androidarts.com/art_tut.htm
Goodluck!