I've now put my book up in Lulu.comin an Epub format, as well as .pdf for those who want to print. Unlike the .pdf version, however, now all the hyperlinks work as they did on the DVD some years ago.
Here's part of the introduction:
As the title is intended to indicate, this book is about how a potter can use a little geological knowledge to help him find his materials around him and also perhaps deepen what he may already know about his clay and glazes. It might also point him towards an understanding of, and possibly cures to, problems he may have. This is based on my personal experience--all those heartbreaks and joys I've had over the years.