The 12 Principles of Motion Graphics Design - Ocula
In the age of the digital device, adaptive technology and moving interfaces, motion graphics design has quickly become an ubiquitous part of any creative designer's skill set. Whilst mastery of the specific tools to design and move graphics, such as Houdini, After Effects, or coding languages like CSS3 and HTML5, are necessary, that doesn't always correlate to a mastery of the craft.
http://www.ocula.co.uk/motion-graphics/12-principles-motion-graphics-design/