Daniel Lopacki was recently honored in the fact that his work has been included on the website American Masters of Stone.
Excerpt from home page:
This website is dedicated to those North American artists working with stone using the techniques defined as "Commesso" or Intarsia. These ancient art forms have almost disappeared in Europe over the past 150 years. Even though we have many reference books on the art and artists of Europe, there were no documented historical data on this art form in America except for brief articles in a few magazines, notably, The Lapidary Journal, Gems&Minerals, and Rock&Gem.