My friend emailed me this, let me share it with you. It's fun!
What do you see?

In black, you can read the word GOOD, in white, the word EVIL.
Now what do you see?

You may not see it at first but the white spaces read the word OPTICAL. The blue landscape read the word ILLUSION.
What do you see here?

This one is quite tricky...
The word TEACh reflects the word LEARN.
Last one... What do you see?

You probably read the word ME in brown, but if you look inside me, you will find..
YOU!!!!
Do you need to look again?

Ciao,
IF [A]