J. Mark G. Williams, Ph.D. is Professor of Clinical Psychology and Director of the Oxford Mindfulness Centre at the University of Oxford, UK. His research focuses on how best to alleviate depression and suicidality. Previous publications include Mindfulness: A Practical Guide to Finding Peace in a Frantic World (2011) and The Mindful Way through Depression: Freeing Yourself from Chronic Unhappiness (2007).
Jon Kabat-Zinn, Ph.D. is Professor of Medicine Emeritus, and Founder of MBSR and the Center for Mindfulness in Medicine, Health Care and Society at the University of Massachusetts Medical School, USA. He teaches mindfulness meditation as a technique to help people cope with stress, anxiety, pain and illness. Previous publications include Mindfulness for Beginnners: Reclaiming the Present Moment – and Your Life (2012) and Letting Everything Become Your Teacher: One Hundred Lessons in Mindfulness (2009).