Peter Williams has practiced meditation for 31 years, primarily in the Theravada Buddhist tradition, with much practice in the Tibetan tradition as well. He has done more than 41 months of silent retreat. He has taught insight meditation (mindfulness) since 2003 and has completed the Community Dharma Leader training through Spirit Rock Meditation Center. His primary teachers have been Joseph Goldstein, Michelle McDonald, and Guy Armstrong. Peter leads meditation retreats and dedicated practice groups based out of Longmont, CO. He has taught mindfulness to diverse audiences, from juvenile justices to school teachers to environmentalists. He is one of the founders of the Rocky Mountain Ecodharma Retreat Center in the mountains near Boulder, CO.

Since 2007, Peter has worked as an emotional wellness consultant, using mindfulness and spirituality to heal emotional distress. In an 18-year career in the environmental field, Peter worked as an environmental educator for the Massachusetts Audubon Society, as a consulting ecologist for groups such as The Nature Conservancy, and as a lecturer in wildlife biology at the University of Vermont. Peter enjoys playing piano, golfing, bird watching, hiking and being outdoors as much as possible.