Read out loud the text inside the triangle below
More than likely you said " A Bird In The Bush" and ...if this is what you said, then you failed to see
that the word "THE" repeated twice.
NEXT
what do you see?

In black you can read the word "GOOD", in white the word "EVIL" (inside each black letter is the white letter)
Now what so you see? 
You may not see it at first, but the white space read the word
"optical", the blue landscape read the word "
illusion". LOOK again ! Can see why this painting is called an optical illusion.
What do you see here?

The word
" Teach" reflected as
"Learn"