If you've ever wanted to make your own cartoons, learning the basic principles of animation from two of Disney's greatest is a great way to start. This video course explains each of the "12 Principles of Animation" in an entertaining and easy-to-understand way.
You may not have heard of Frank Thomas or Ollie Johnston before, but you're probably familiar with their work. They both belonged to Walt Disney's "Nine Old Men," a group of animators that worked with Disney himself on classics from Snow White to The Rescuers. These videos from animator and YouTuber Alan Becker, go over the principles for animation so you can learn the basics and get started animating right. The first video, featured above, goes over squash and stretch, but you can find the rest of the principles at the link below.
12 Principles of Animation [YouTube]