Robert S. Ellwood (b. 1933) has authored 12 books including The cross and the grail, Cycles of faith, and Mysticism and religion. Their work covers Religion, Religions, and Theosophy. It draws from the Comparative Religion and Meditation & Mindfulness traditions.
Books by Robert S. Ellwood
1950, crossroads of American religious life
The fifties spiritual marketplace
American religion in a decade of conflict
The sixties spiritual awakening
American religion moving from modern to postmodern
Islands of the dawn
the story of alternative spirituality in New Zealand
Eastern spirituality in America
selected writings