那位搞HCI的大侠帮忙解决一下关于information
visualization的问题，能不能给一点hint或相关资料，不胜感激！
question: Analyze information visualization as a broad HCI issue. Use
perceptual and cognitive science to argue TWO design principles for
information visualization. Illustrate these priciples with information
visualization techniques in common use today. Speculate about how the
principles could be generalized or extended for constant animation of
visualizations.
