John Welwood is a clinical psychologist and psychotherapist. He lives in Mill Valley, CA.
Thich Nhat Hanh is a Vietnamese Buddhist monk. Martin Luther King, Jr. nominated him for the Nobel Peace Prize in 1967 for his efforts to reconcile North and South Vietnam during the Vietnam War. Hanh was part of a movement called "engaged Buddhism", which combines traditional practices with nonviolent civil disobedience, and he was exiled by both the Communist and non-Communist governments. He is a respected writer and scholar, and founded a retreat in France called Plum Village. Hanh has written several books, including The Heart of the Buddha's Teaching: An Introduction to Buddhism, Peace Is Every Step, and Living Buddha, Living Christ.