The book I co-authored with three other artists has been released, The Art of Zentangle. You will find 40+ pages of my work in the book (I am the "yellow" section.)
It is hard for me to believe that my first publication is a Walter Foster book. They have been around for 90 years. I remember seeing their books when I was a child.
I was excited when I learned they were going to use one of my tangles for the cover. (See below.)
You can find the book on Amazon.com by searching the name.