Sadly, the Guardian sells next to nothing despite it being by far the best newspaper.

Yes I agree with that. The thing is, ever time I made things more accurate I later realise I've made it too involved.

However, it *is* visually convincing and it does explain it, and so I thought it would make quite a good introduction.

Do feel free to get in contact with me about any ideas though. I know it isn't perfect, or anywhere near, and there is always a good reason to improve it.

As for the other comment, opps I'll fix that.

Oh and also this book is great:

http://www.amazon.com/Euler-Master-Dolciani-Mathematical-Expositions/dp/0883853280

You don't need much knowledge (A-Level knowledge in the UK) but there are so many wonderful results proved in it!

I wrote this:
http://people.pwf.cam.ac.uk/jlnw3/maths/books/prime/

It was meant as an introduction to the idea of proof. Perhaps you might like it.