It's a series of four graphics that explain a simple basic process of PI for those that have never done it before but would like to try it out - which I encourage you to do.
It's fantastic easy passive income that's fairly under utilized. I'm also predicting an increase in profit after Rubicon due to the fact PI materials are used to make POCOs.
Disclaimer: I am very aware that this is not the be all and end all of PI, there are many different ways to do it, but this is the way I do it, as do those that helped me create it.
It was produced when I was living in 0.0 space, so some things are not applicable if using it for lowsec or highsec purposes. It's also Test branded despite none of the authors being in Test any longer.
I am more than happy to answer any of your PI questions and you can contact me here on the blog, on Reddit as Nibron, in Eve as Notmo or on Twitter as Notmo_EVE. You could contact me on Facebook too, but I'm not giving you my real name.
EDIT: Apparently blogspot shrunk the images so here are the four links to the full res versions:
Part One: http://minus.com/lgvv7M2gir7Vh
Part Two: http://i.minus.com/igvv7M2gir7Vh.png
Part Three: http://i.minus.com/iy1AaOkS6m0lT.png
Part Four: http://i.minus.com/iYTEvw3OYZJW2.png