Leigh Brasington studied with the late Ayya Khema, who authorized him to teach retreats on the jhanas; he was also empowered to teach by Jack Kornfield. His is the author of Right Concentration: A Practical Guide to the Jhanas (Shambhala, October 2015), and editor of The Path to Peace: A Buddhist Guide to Cultivating Loving-Kindness (Shambhala, July 2022).