Michael Ward has published an iBook / E-book about Pat's work:
Forty Paintings in Paper Fiber
To buy the book for your ipad:
You start the iBooks app on your ipad, click the "store" button in the upper left corner, and then the search box is in the upper right corner. Enter "forty paintings paper" in the box: it brings up a link to the book's page on the iBooks store.
The book is for sale now on Google:
or, Take a look: http://www.amazon.com/dp/B008YQ1JUC for Amazon.