books relating to cult recovery ...

Combatting Cult Mind Control
Steven Hassan
Snapping: America's Epidemic of Sudden Personality Change
Flo Conway, Jim Siegelman
Influence: The Psychology of Persuasion
Robert B. Cialdini, Ph.D.
Cults in Our Midst
Margaret Thaler Singer, Janja Lalich
The Courage to Create
Rollo May
Releasing The Bonds: Empowering People to Think for Themselves
Steven Hassan

Influence: Science and Practice

Robert B. Cialdini, Ph.D.
Cults: Faith, Healing, and Coercion
Marc Galanter

Thought Reform and the Psychology of Totalism

Robert Jay Lifton
The True Believer: Thoughts on the Nature of Mass Movements
Eric Hoffer
Captive Hearts, Captive Minds: Freedom and Recovery from Cults and Other Abusive Relationships
Janja Lalich, Madeleine Landau Tobias
Recovery from Cults: Help for Victims of Psychological and Spiritual Abuse
Michael D. Langone
The Manipulated Mind: Brainwashing, Conditioning and Indoctrination
Denise Winn
Battle for the Mind: A Physiology of Conversion and Brain-Washing
William Walters Sargant
Extraordinary Popular Delusions & the Madness of Crowds
Charles MacKay, Andrew Tobias
The Guru Papers: Masks of Authoritarian Power
Joel Kramer, Diana Alstad
Out of the Cults and into the Church: Understanding & Encouraging Ex-Cultists
Janis Hutchinson
Emotional Blackmail: When the People in Your Life Use Fear, Obligation and Guilt to Manipulate You
Susan Forward, Donna Frazier
In Sheep's Clothing: Understanding and Dealing With Manipulative People
George K. Simon
12 'Christian' Beliefs That Can Drive You Crazy: Relief from False Assumptions
Henry Cloud, John Townsend
The Subtle Power of Spiritual Abuse: Recognizing and Escaping Spiritual Manipulation and False Spiritual Authority Within the Church
David Johnson & Jeff VanVonderen
Twisted Scriptures: A Path to Freedom from Abusive Churches
Mary Alice Chrnalogar
Faith That Hurts, Faith That Heals/Understanding the Fine Line Between Healthy Faith and Spiritual Abuse
Stephen Arterburn, Jack Felton

When God Becomes a Drug : Breaking the Chains of Religious Addiction and Abuse

Leo Booth, John Bradshaw
Letting Go of Anger: The 10 Most Common Anger Styles and What to Do About Them
Ron Potter-Efron, Pat Potter-Efron
Out of the Cocoon: A Young Woman's Courageous Flight from the Grip of a Religious Cult

[thanks to Jan for helping formulate the list]