Prayer is an act of communication with God or the Absolute. The spiritual beliefs of the person praying influence how the Absolute is perceived.

Noel O'Donoghue has written:

'Adventures in prayer' -- subject(s): Mysticism, Prayer

'Mystics for our time' -- subject(s): Catholic Church, Spirituality

As of 1993, one American researcher had compiled a list of over 130 English-language clinical studies that have documented the effectiveness of faith and prayer in healing.

Martin W. Pable has written:

'Reclaim the Fire'

'A man and his God' -- subject(s): Spirituality, Men, Religious life

'Prayer' -- subject(s): Catholic Church, Catholic authors, Christian life, Prayer, Prayer-books and devotions

Anne E Kitch has written several books on spirituality, prayer, and Christian living. Some of her works include "The Anglican Family Prayer Book" and "The Anglican Family Prayer Book."