Leigh Brasington has been practicing meditation since 1985 and is the senior American student of the late Ven. Ayya Khema. Leigh began assisting Ven. Ayya Khemma in 1994, and began teaching retreats on his on in 1997. He teaches in Europe and North America and is the author of the book Right Concentration: A Practical Guide to the Jhanas. Find more about Leighs teaching and schedule at http://leighb.com.