Jakob Nielsen's 10 general principles for interaction design. They are called "heuristics" because they are broad rules of thumb and not specific usability guidelines.
Character animation is one of the trickiest techniques in After Effects. It’s become a very popular technique for all sorts of animations, especially things like explainer videos and shorts. But creating great character animation starts with great character rigging, and this is something that takes a little work.
After Effects
5 Great 2D Character Rigging Tutorials for After Effects
