Billy is a qualified yoga teacher. He studied with many teachers in a wide variety of approaches. In 1982 he met Jean Klein who introduced him to Yoga in the Kashmir Tradition. He worked closely with him for many years attending his seminars in England, Holland, France and the United States.

Billy has published a book which presents these teachings: Yoga in the Kashmir Tradition: the art of listening
He's also the author of The Mirage of Separation and Ocean of Silence, collections of poems and prose written from a non-dualistic perspective, covering subjects that include identification, desire, time, the spiritual path and silence.

He has also studied in a variety of body related therapies including Eutony, Feldencrais, Alexander Technique and Craniosacral Therapy.

He holds regular weekly yoga classes online, and retreats in different parts of the country. He also runs meditation, yoga and pranayama days in person and online in London.