1. Fibonacci Sequence:
The Fibonacci Sequence is the series of numbers:
0, 1, 1, 2, 3, 5, 8, 13, 21, 34, ...
The next number is found by adding up the two numbers before it.
like
0 + 1 = 1 ,
1 + 1 = 2
and so on...
2. Imgaes:
below picture is the short story of Fibonacci Sequence

3. Graphical Interpretation:

The above two images are pictorial Interpretations of Fibonacci Series
4. Source Snapshot:

"There are two ways to write error-free programs; only the third one works."
-AlanPerils