There are 12 Basic animation principle
What is the Disney's twelve basic principles of animation ?
The Disney animators Ollie Johnston and Frank Thomas introduced the twelve fundamental principles of animation in their 1981 book The Illusion of Life: Disney Animation. The guiding principles are derived from the efforts of Disney animators who sought to create more realistic animation starting in the 1930s.
These guidelines addressed more abstract topics like emotional timing and character appeal in addition to creating the illusion that cartoon figures followed the fundamental rules of physics.