Can you read this?

To view illusion get up from your seat and move back about 8 feet !

OR 

Close your eye upto 80% to read it !!

Shadow Perception

This is the great example of how easily your eyes can fool you! 
The circles appear to be slightly rotating, but in fact, they are not moving at all. 
 It is the shadows that move around it that give the illusion.

Mr Angry and Mr Calm