Blender 3D: Noob to Pro/Nodes

Blender’s Node Editor lets you assemble various processing blocks (nodes) into combinations which feed data to one another along connections that you specify to produce complex effects. These effects can be used in three different ways: as textures, as materials, or for compositing. The Node Editor makes different kinds of processing blocks available, depending on which of the three kinds of effects you are producing:
 * Texture nodes
 * Material nodes
 * Compositing nodes