[hackerknew]

I like how the feeling of the author's excitement about the topic is embedded in the text

""" upon looking at these numbers one has the feeling of being in the presence of one of the inexplicable secrets of creation. """

""" I hope that with this and the other pictures I have shown, I have communicated a certain impression of the immense beauty of the prime numbers and of the endless surprises which they have in store for us. """

[fracus]

And I love how he didn't really assume any prior knowledge for the reader. It was very accessibly written.