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Sigmund Freud was the founder of psychoanalysis and one of the best-known figures in psychology. Learn more about his life, career, and theories through biographies, timelines, image galleries, and overviews of his major psychology theories.

What Is a Freudian Slip?

You've probably heard the term Freudian slip, but what exactly does it mean? Learn more about the definition of a Freudian slip.

Sigmund Freud – The Life, Work, & Theories of Sigmund Freud

Often described as the most famous figure in psychology, Sigmund Freud is also one of the most influential thinkers of the twentieth century. Take a journey through his life, work, and theories in this profile of Sigmund Freud.

Sigmund Freud Photobiography

This photobiography of Sigmund Freud traces his life from early childhood to his final years.

Sigmund Freud Biography

Time Magazine featured Sigmund Freud as one of their 100 most important people of the 20th century. Learn more about the life, career, and contributions of Sigmund Freud.

Sigmund Freud Timeline

Learn more about the life of Sigmund Freud in this timeline of his life and career.

Sigmund Freud Quotes

Selected quotes by psychoanalyst Sigmund Freud.

Psychoanalytic Theory - The Conscious and Unconscious Mind

According to psychoanalysis, thoughts and motivations outside of our awareness influence our behavior. Learn more about Freud's theory of the conscious and unconscious mind.

The Id, Ego, and Superego

According to Freud's psychoanalytic theory of personality, there are three elements of personality--the id, the ego, and the superego. Learn more about how these elements work together to influence behavior.

Life and Death Instincts

Sigmund Freud believed that all instincts fit into one of two classes: the life instincts and the death intincts. Learn more about these life and death instincts.

Cathexis and Anticathexis

In Freud's theory of drives, he described a cathexis as a release of psychic energy. Learn more about drives, cathexis, and anticathexis.

Freud’s Stages of Psychosexual Development

Freud's stages of psychosexual development is on of the best known personality theories, but also one of the most controversial. Learn more about the psychosexual stages of development.

Defense Mechanisms - Types of Defense Mechanisms

According to Sigmund Freud's theory of personality, defense mechanisms help the ego cope with anxiety. Learn more about the 10 defense mechanisms described by Anna Freud, and more.

Defense Mechanisms Quiz

Test your knowledge of these defense mechanisms in the following quiz

The Interpretation of Dreams by Sigmund Freud

The Interpretation of Dreams stands as one of the classic texts in the history of psychology and marked the very beginnings of psychoanalytic psychology. Learn more about Sigmund Freud's seminal work.

Freud & Women

While Sigmund Freud did not write extensively about the psychology of women, his body of work did address topics such as penis envy, hysteria, and femininity. Learn more about Freud's perspectives on women as well as rebuttals from his critics.

Freud & Religion

Sigmund Freud wrote extensively about religion and spirituality, describing religion as "an illusion and it derives its strength from the fact that it falls in with our instinctual desires." Learn more about some of Freud's views and read some of his thoughts on religion.

Profile of Anna O.

While Sigmund Freud never actually met Anna O., her case played a major role in the development of psychoanalysis and talk therapy. Learn more about Anna O. and her place in the history of psychology.

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