Since 1999, Chi Running® has taught the benefits of natural, barefoot-like running to hundreds of thousands of people through the Chi Running book, DVD, workshops and training programs. There are currently more than 170 Certified Chi Running Instructors in 21 countries. The Chi Running book has been translated into 10 languages, with more than 300,000 copies in print. An updated and revised edition was released in the U.S. in 2009 by Simon & Schuster.