Christianity and philosophy -- See Philosophy and religion Here are entered works on the reciprocal relationship and influence between philosophy and religion. Works on the philosophy of religion are entered under Religion--Philosophy.
Christianity and social problems -- See Church and social problems Here are entered works on the efforts of the church to deal with social problems. Works on the sociology of Christian denominations and general Christian social theory are entered under Christian sociology.
Christianity and state -- See Church and state Here are entered works on the relationship between government and Christian denominations. Works on the relationship between government and religion in general are entered under Religion and state.
Christianity Apologetic works -- See Apologetics Here are entered works explaining Christianity and defending it against criticism. Works explaining and defending other religions are entered under the individual religion with subdivision Apologetic works. --subdivision Apologetic works under individual denominations, e.g. Catholic Church--Apologetic works