I was teaching an Illustrator class recently, and talking briefly about the Pathfinder panel:
I realized as I was discussing it, that many of these options are not as straightforward as the end-user might like. I promised the class I would go into more depth on our blog.
So in the following video, I will explore the Pathfinder panel, and demonstrate each of the buttons, so that we can see exactly what they all can accomplish. Hopefully this will spark your creativity, and give you a better idea of the power of these simple buttons.