One of the fascinating aspects of living in a time of great religious flux is the boom in religious (and irreligious) innovation. Young adults who are leaving established institutions are forming new kinds of associations to nurture a sense of purpose and belonging. Congregations with empty pews are experimenting with novel forms of music and liturgy to try to attract converts as well as to retain the faithful. Service-oriented groups that welcome all comers, regardless of religious affiliation, are flourishing across the country. And a variety of spiritual practices that focus on the experience of individual believers are flourishing in the West as well in as in the global South.