The Complete Book of Christian Prayer, New York: Continuum, 1995.
David F. Abramtsov, The Orthodox Companion, Antiochian Orthodox Christian Archdiocese: Englewood, NJ, 1983. This is a great overview of Orthodox practice written for Orthodox Christian. It also has a few prayers in it.
David Adam, Power Lines: Celtic Prayers About Work, Triangle: London, 1992. David Adam has written many helpful prayer books.
Robert Atwan, Poetry in English Inspired by the Bible - Chapters into Verse Volumes 1 and 2, New York, Oxford University Press, 1993.
Robert Atwell (Compiler), Celebrating the Seasons: Daily Spiritual Readings for the Christian Year, Morehouse Publishing, 2001. This is the best daily reading book I have ever run across. It follows the liturgical year and introduces a wide breath of great authors that all Christians should be read.
John Baillie, A Diary of Private Prayer, Charles Scribner’s Sons: New York, 1949.
William Barclay, Everyday Prayers, Harper & Row Publishers: San Francisco, 1959.
William Barclay, A Barclay Prayer Book, Westminster John Knox Press: Louisville, 2003.
Arthur Bennett, The Valley of Vision: A Collection of Puritan Prayers and Devotions, The Banner of Truth Trust: Carlisle, PA, 2001.
Robert Benson (editor), Venite: A Book of Daily Prayer, J. P. Tarcher, 2000. You might be able to find this prayer book at a discount bookstore.
Walter Brueggemann, Awed to Heaven, Rooted to Earth, Fortress Press: Minneapolis, 2003.
F. Forrester Church and Terrence J. Mulry, The Macmillan Book of Earliest Christian Prayers, New York: MacMillan Publishing Company, 1988. Many wonderful ancient prayers.
Phyllis Cole and Everett Tilson, Litanies and Other Prayers, Abingdon Press: Nashville, 1992. These books are divided by year A, B and C and contain many helpful prayers.
Michael Counsell (editor), 2,000 Years of Prayer, Harrisburg, PA: Morehouse Publishing, 1999. Includes a variety of prayers. Nice introduction on people.
Thomas Craughwell (editor), Every Eye Beholds You: A World Treasury of Prayer, Harcourt Brace and Company, 1998. This offers prayers from a variety of spiritual traditions.
Horton Davis (editor), The Communion of Saints: Prayers of the Famous, William B. Eerdmans Company: Grand Rapids, 1990.
Esther DeWaal, The Celtic Vision – Prayers, Blessings, Songs, and Invocations from the Gaelic Tradition, Liguori: Liguori Publications, 2001. Offers the flavor of Celtic prayers collected in the 19th Century in the Scottish Highlands.
John Fitzgerald, A Contemporary Celtic Prayer Book, Chicago: ACTA Publications, 1998. Daily prayer guide.
Kathy Galloway, The Pattern of Our Days: Worship in the Celtic Tradition from the Iona Community, Paulist Press: New York, 1999. The Iona Community is a bit liberal but there are still some helpful prayers here.
Edward Hays, Pray All Ways, Forest of Peace Publishing: Leavenworth, KS, 1981. Hays books slightly irreverent but often deeply challenging. This book contains essays on prayer as well as prayers.
Donald T. Kauffman (editor), A Treasury of Great Prayers, Fleming H. Revell Company: Westwood, NJ, 1964.
John Killinger, Enter Every Trembling Heart: Prayers for Christian Worship, Abington Press; Nashville, 2003.
Elias Kopciowski (compiler), Praying with the Jewish Tradition, William B. Eerdmans Company: Grand Rapids, 1988.
Perry D. LeFevre, The Prayers of Kierkegaard, Chicago: University of Chicago Press, 1965. Collection of prayers by Kierkegaard addressing the Father, the Son, and the Holy Spirit followed by special prayers for Church.
Paul Lowder, Let Us Pray, The Upper Room: Nashville, 1963.
Peter Marshall, The Prayers of Peter Marshall, McGraw-Hill Book Company: New York, 1954.
J. Philip Newell, Celtic Benediction – Morning and Night Prayer, Grand Rapids: Eerdmans, 2000. Daily prayer guide.
The Northhumbria Community, Celtic Daily Prayer: Prayers and Readings From the Northumbria Community, San Francisco: HaprerCollins, 2002. This prayer book offers two different daily readings as well as morning, midday and evening prayers.
John Henry Newman, Selected Sermons, Prayers and Devotions, Vintage Books, 1999.
Brendan O’Malley, A Celtic Primer: The complete Celtic worship resource and collection, Morehouse Publishing: New York, 2002. This is a great resource for Celtic prayer and praise. The book comes with a disc of all prayers, so they can be easily incorporated into worship.
Larry Richards, Every Prayer and Petition in The Bible, Thomas Nelson Publishers: Nashville, 1998.
Alexander Schmemann (editor), A Manual of Eastern Orthodox Prayers, Crestwood, NY: SVS Press, 1997. I have found this little prayer book very helpful in my personal devotions.
Phyllis Tickle (editor), The Divine Hours: Prayers for Summertime, Doubleday, 2000. This is one of three prayer books Phyllis Tickle has edited for different seasons of the year. This is a helpful book for orienting our life the cycle of daily offices.
Hannah Ward and Jennifer Wild, Resources for Preaching and Worship: Year C, Westminster John Knox Press: Louisville, 2003.
James D. Watkins, Manual of Prayers, Pontifical North American College: Chicago, 1998. This is a great collection of Roman Catholic prayers.
Robert Van De Weyer, Celtic Praise, Nashville, Abingdon Press, 1998. Beautiful little book.
Robert Van De Weyer, Celtic Prayers, Nashville, Abingdon Press, 1999. Another beautiful little book.
Robert Van De Weyer, The HarperCollins Book of Prayers, Edison, NJ: Castle Books, 1997. Extensive collection of prayers.