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A Lexicon of Lunacy: Metaphoric Malady, Responsibility, and Psychiatry (New Brunswick, NJ: Transaction Books, 1993).
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Ceremonial Chemistry: The Ritual Persecution of Drugs, Addicts, and Pushers (Garden City, NY: Doubleday Anchor, 1976); with a new Preface (Holmes Beach, FL: Learning Publications, 1985). (Syracuse: Syracuse University Press, 2003).
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Coercion as Cure: A Critical History of Psychiatry (New Brunswick, NJ: Transaction Books, 2007).
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Cruel Compassion: Psychiatric Control of Society's Unwanted (New York: John Wiley, 1994). (Syracuse: Syracuse University Press, 1996).
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Faith in Freedom: Libertarian Principles and Psychiatric Practices (New Brunswick, NJ: Transaction Books, 2004).
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Fatal Freedom: The Ethics and Politics of Suicide (Westport, CT: Praeger, 1999). (Syracuse: Syracuse University Press, 1996).
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Heresies (Garden City, NY: Doubleday Anchor, 1976).
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Ideology and Insanity: Essays on the Psychiatric Dehumanization of Man (Garden City, NY: Doubleday Anchor, 1970); with a new Preface (Syracuse: Syracuse University Press, 1991).
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Insanity: The Idea and Its Consequences (New York: John Wiley, 1987); with a new Preface (Syracuse: Syracuse University Press, 1997).
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Karl Kraus and the Soul-Doctors: A Pioneer Critic and His Criticism of Psychiatry and Psychoanalysis (Baton Rouge, LA: Louisiana State University Press, 1976); reprinted as Anti-Freud: Karl Kraus and His Criticism of Psychoanalysis and Psychiatry, with a new Preface (Syracuse: Syracuse University Press, 1990).
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Law, Liberty, and Psychiatry: An Inquiry into the Social Uses of Mental Health Practices (New York: Macmillan, 1963); with a new Preface (Syracuse: Syracuse University Press, 1989).
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Liberation By Oppression: A Comparative Study of Slavery and Psychiatry (New Brunswick, NJ: Transaction Books, 2002).
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L’incapace: Lo specchio morale del conformismo, translated by Cristina Frua De Angeli (Milano: Spirali/Vel, 1990).
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“My Madness Saved Me”: The Madness and Marriage of Virginia Woolf (New Brunswick, NJ: Transaction Books, 2006).
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Our Right to Drugs: The Case for a Free Market (New York: Praeger, 1992); with a new Preface (Syracuse: Syracuse University Press, 1996).
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Pain and Pleasure: A Study of Bodily Feelings (New York: Basic Books, 1957); 2nd ed. (New York: Basic Books, 1975); with a new Preface (Syracuse: Syracuse University Press, 1988).
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Pharmacracy: Medicine and Politics in America (Westport, CT: Praeger, 2001). (Syracuse: Syracuse University Press, 1996, 2003).
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Psychiatric Justice (New York: Macmillan, 1965); with a new Afterword (Syracuse: Syracuse University Press, 1988).
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Psychiatric Slavery: When Confinement and Coercion Masquerade as Cure (New York: Free Press, 1977); with a new Preface (Syracuse: Syracuse University Press, 1997).
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Schizophrenia: The Sacred Symbol of Psychiatry (New York: Basic Books, 1976); with a new Preface (Syracuse: Syracuse University Press, 1988).
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Sex by Prescription (Garden City, NY: Doubleday Anchor, 1980); in the United Kingdom: Sex: Facts, Frauds, and Follies (Oxford: Blackwell, 1981); with a new Preface (Syracuse: Syracuse University Press, 1990).
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Szasz Under Fire: The Psychiatric Abolitionist Faces His Critics, edited by Jeffrey A. Schaler (Chicago: Open Court, 2004). [Contains autobiography].
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The Age of Madness: A History of Involuntary Mental Hospitalization Presented in Selected Text (Editor) (Garden City, NY: Doubleday Anchor, 1973).
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The Ethics of Psychoanalysis: The Theory and Method of Autonomous Psychotherapy (New York: Basic Books, 1965); with a new Preface (New York: Basic Books/Harper Colophon, 1974); with a new Preface (Syracuse: Syracuse University Press, 1988).
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The Manufacture of Madness: A Comparative Study of the Inquisition and the Mental Health Movement (New York: Harper & Row, 1970); with a new Preface (Syracuse: Syracuse University Press, 1997).
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The Myth of Mental Illness: Foundations of a Theory of Personal Conduct (New York: Hoeber-Harper, 1961); rev. ed. (New York: Harper & Row, 1974).
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The Myth of Psychotherapy: Mental Healing as Religion, Rhetoric, and Repression (Garden City, NY: Doubleday Anchor, 1978); with a New Preface (Syracuse: Syracuse University Press, 1988).
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The Second Sin (Garden City, NY: Doubleday, 1973).
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The Theology of Medicine: The Political-Philosophical Foundations of Medical Ethics (Baton Rouge, LA: Louisiana State University Press, 1977; New York: Harper Colophon, 1977); with a new Preface (Syracuse: Syracuse University Press, 1988).
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The Meaning of Mind: Language, Morality, and Neuroscience (Westport, CT: Praeger, 1996). (Syracuse: Syracuse University Press, 1996).
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The Therapeutic State: Psychiatry in the Mirror of Current Events (Buffalo, NY: Prometheus Books, 1984).
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The Untamed Tongue: A Dissenting Dictionary (Lasalle, IL.: Open Court, 1990).
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La Battaglia per la Salute, translated by Alessandra Guerra, Anna Spadafora, and Lidia Zanardi (Milano: Spirali, 2000).
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Words to the Wise: A Medical-Philosophical Dictionary (New Brunswick, NJ: Transaction Books, 2004).