Making and add effective: why Useful Field of View (UFOV) is so important

You are glancing everywhere searching for information on your computer screen. Soon, you start to feel frustrated and lose patience. Suddenly someone come to your rescue. Standing just behind your shoulder, this helper rapidly points out where to look on the screen.  You may or may not have experienced it but this story is related to the notion of Useful Field of View (UFOV).

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