12 Principles of Animation...

Came across this fantastic video demonstrating the 12 Principles of Animation by

Cento Lodigiani

Disney Animation: The Illusion of Life is a book by Ollie Johnston & Frank Thomas, tow of the animation masters at Disney during the Golden Age of animation, referred by Walt Disney as his "Nine Old Men".

12 Principles of Animation, gif
12 Principles of Animation, Video