The fast-growing liberal-conservative rift within the Episcopal Church has dominated the headlines of late, along with the rancorous exchanges between liberal Episcopalians and conservatives in world Anglicanism. But who are the Episcopalians? And why does their Church-of-England tradition matter in America? To understand Episcopalianism, you need to know that it arose from the Church of England, or Anglicanism. Remember? —that's the church that divided from Roman Catholicism when Henry VIII needed a quickie divorce. OK, but what are they like? How do they worship? What do they believe? First impressions of this worldwide communion only confuse: Some Anglicans are into...