To generations of Roman Catholics, Lutherans and Calvinists, a catechism was a manual of questions and answers on doctrine that youngsters were expected to memorize. In a book billed as the first "ecumenical catechism" since the Reformation, the Q.-and-A. format and many of the old answers are missing. Adults, not children, have been its readers since it was published in West Germany and Switzerland two years ago.
Now translated into English, The Common Catechism (The Seabury Press; $10.95) is timed for Easter release in the U.S. Unlike traditional catechisms, the new book has a...