I wrote a couple of instructions and tutorials. Some were blogged, and you can find a list here: Tutorials that I blogged.
One is also available as a free pdf download. Click here to access the download page.
I made a couple of zines, one of which is free to download. Click here to see it.
And finally I have a couple of more thoroughly worked out instructions for sale. You can find out more about that if you click here.