If you’re interested in this topic I really recommend The Animator’s Survival Kit by Richard Williams (the director of animation in Who Framed Roger Rabbit):
Survival Kit is an advanced book that dives into the deep end, The Illusion Of Life by Frank Thomas and Ollie Johnson [1] (two of the guys on a bunch of the early Disney features) and Cartoon Animation by Preston Blair [2] (countless MGM shorts) will give you a solid grounding in the basics.
The whole article focuses on expanding a list of principles of animation from Illusion.
Drawing on the Right Side of the Brain, by Betty Edwards. Learning to draw is actually mostly about learning to see; not seeing the objects as we usually do, but seeing the light and shadow that form them.
The whole article focuses on expanding a list of principles of animation from Illusion.
1: https://www.amazon.com/Illusion-Life-Disney-Animation/dp/078...
2: https://www.amazon.com/Cartoon-Animation-Collectors-Preston-...