The Color Nodes
This is such a large topic that it deserves an entire Wiki devoted to it. However...
Color and Nuke
Why Nuke is and isn't a great color manipulator.
Color nodes
Exposure (and why not to use it)
Histogram (and why it isn't so great)
Color misc
Newbies are advised to read these in the order in which they are presented. EXPLANATORY TEXT HERE. MORE ON THE ORDER OF LEARNING. COLOR SPACE?? COLORB MANAGMENT
Visualizing Color Operations Using the Sampler Node
