My first novel, The Gathering Place, revolves around spiritual deception in the life of the main character. I have experienced such deception first-hand, and found a number of resources invaluable in getting back on track with life and with God. This list is by no means comprehensive, and will no doubt grow over time. I hope it is of help to you. (If you have found a resource that I missed, please share it with me so I can post it here.)
Watchman Fellowship -- a fantastic, in-depth ministry to those in cults or spiritual deception, with a wealth of resources and materials to assist and explain. Website: www.watchman.org. Highly recommended.
NEW FROM WATCHMAN FELLOWSHIP: The Spiritual Abuse Recovery Workbook -- A Recovery Workbook for "Friendly Fire" Casualties. An excellent workbook to help you process your experience (or understand that of a friend or loved one) and with space to journal your answers to challenging questions and track your progress. Contact Watchman Fellowship at the link above to order.
International Cultic Studies Association (formerly AFF -- American Family Foundation) -- excellent information. Visit their website at www.cultinfobooks.com.
Books are listed in no particular order, and should be evaluated in light of your own experience. I found something helpful in each of them.
Out of the Cults, Into the Church -- Janis Hutchinson, Academic & Professional (1994). ISBN 0825428858.
Fast Facts on False Teachings -- Ed Decker and Ron Carlson, authorities on abusive churches. Harvest House Publishers (2003). ISBN 0736912142.
Churches that Abuse, and Recovering from Churches that Abuse -- Ronald Enroth, Zondervan, Reprint Edition (1993). "Churches" ISBN 0310532922. "Recovering" ISBN 0310398703.
Twisted Scriptures: Breaking Free from Churches that Abuse -- Mary Alice Chrnalogar, Whitaker House (1997). ISBN 0883685140.
Healing Spiritual Abuse: How to Break Free from Bad Church Experiences -- Ken Blue, InterVarsity Press (1993). ISBN 0830816607.
Authority Abusers: Breaking Free from Spiritual Abuse -- George G. Bloomer, Whitaker House (2002). ISBN: 0883687682.
Grace Plus Nothing -- Jeff Harkin, Tyndale House Pub., Reprint Edition (1992). ISBN 0842311440.
Recovery from Cults -- Michael D. Langone, W.W. Norton & Co., New Edition (1995). ISBN: 0393313212.
Captive Hearts, Captive Minds -- Michael D. Langone with Madeleine Landau Tobias and Janja Lalich. Hunter House (CA) (1994). ISBN: 0897931440.
By Hook or By Crook: How Cults Lure Christians -- Dr. Harold L. Bussell, McCracken Press (1993). ISBN: 1561775850.
Toxic Faith -- Stephen Arterburn and Jack Felton, Shaw (1st Shaw Edition) (2001). ISBN: 0877888256.
Tired of Trying to Measure Up -- Jeff VanVonderen, Bethany House Pub. (1989). ISBN: 1556610300.