Gustave Reininger is a founder and for many years a trustee of Contemplative Outreach, an ecumenical network that teachers Centering Prayer in churches, schools, and places of work. Father Thomas Keating was known throughout the world as an exponent, teacher, and writer on contemplative prayer. A Cistercian (Trappist) monk of St. Benedict's Monastery, Snowmass, Colorado, he was a founder of the Centering Prayer Movement and of Contemplative Outreach. He authored numerous books, particularly of the trilogy Open Mind, Open Heart; Invitation to Love; and The Mystery of Christ. Among his books is The Daily Reader for Contemplative Living, compiled by S. Stephanie Iachetta.