Understanding IFS

Dick Schwartz and the birth of IFS

Stéphane Dion

Feb. 2026 · 10 min read

Richard C. Schwartz — known as Dick Schwartz — was a family therapist in Chicago in the 1980s. He was working with adolescent girls struggling with eating disorders when he began noticing something unusual: his clients described their inner experiences as if several distinct voices or characters were involved.

Instead of redirecting them toward more 'clinical' language, Schwartz decided to follow their experience. He asked them to talk to these voices, to listen to them. What he discovered surprised him: these inner parts had roles, fears, histories. And they responded to a calm, curious presence.

Schwartz gradually developed the IFS model — Internal Family Systems — drawing on both family systems therapy (hence the term 'family systems') and his own clinical exploration. The model was formalized in the 1990s, and the foundational book Internal Family Systems Therapy was published in 1995, with Martha Sweezy as co-author on the second edition.

IFS is now recognized as an evidence-based model by the Substance Abuse and Mental Health Services Administration (SAMHSA) in the United States.

Dick Schwartz continues to teach, and his book No Bad Parts (2021) remains the best general-audience introduction to the model.

Stéphane Dion

IFS Practitioner

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