Take a look at the close-up "Detail View" image. What you are looking at is the image of the "pi" symbol, that we've all used in math class growing up...but the symbol is actually made out of the first 5000 digits of Pi. I have altered the colour only on the numbers in the middle to create the shape of the Pi symbol. The numbers read clearly starting with 3.1415....etc at the top. Each row has one hundred numbers in it, a total of 50 rows. The number of "pi" is said to go on forever. I have seen an example of over 1 million digits before.... (which would be way too long for a zazzle product!) It's a great conversation starter...even for those who aren't into math. I designed this in vector-art software for the best possible image. Look for the other Colour variations of this image, and the other products available with this design in the rest of my zazzle store!