Instructions:

1. Stare at the top left corner this screen image and everything seems normal,
2. But, not so, the image is more blurred the further you get from top left corner,
3. Explanation below image.

Explanation:

• The user sees only a small part of a screen at once,
• Our courses explain human vision and how to use this knowledge to make effective screens.

User your browser's "back" command to return to the previous page.