12 Principles of animation
January 30th, 2009
 1. Squash and stretch
 2. Anticipation
 3. Staging
 4. Straight Ahead Action and Pose to Pose
 5. Follow Through and Overlapping Action
 6. Slow In and Slow Out
 7. Arcs
 8. Secondary Action
 9. Timing
 10. Exaggeration
 11. Solid Drawing
 12. Appeal
More info: http://www.animationtoolworks.com/library/article9.html