No Bad Parts by Richard Schwartz: Key Ideas, Research and Who It Suits

No Bad Parts is Richard C. Schwartz's introduction to Internal Family Systems (IFS), the therapy model he developed, written for general readers. The title carries the argument: an inner critic, a part that numbs out and a part that lashes out are not defects to cut away but members of an inner system, each trying in its own way to help.

This guide covers the book's central ideas in our own words, what the research on IFS shows, and who may want a therapist's support while reading. It is commentary, not a stand-in for the book, which you can borrow from a library or find at a bookstore.

What Is No Bad Parts About?

The book makes the case that a person is better understood as a system of inner parts than as one single self. Schwartz explains the model, applies it to trauma, addiction and depression, and includes exercises meant to help readers get to know their parts and what he calls the Self. Its language mixes the spiritual with the therapeutic, which a later section of this guide looks at.

Who Is Richard Schwartz, and Where Did IFS Come From?

Schwartz came to IFS from a background in family therapy. In a 2022 interview with Mad in America, he said the model grew out of work with clients whom family therapy alone was not helping, whose descriptions of inner voices came to look to him like an internal system of parts.

What Are the Key Ideas in No Bad Parts?

Here is how the main terms fit together, drawing on the IFS Institute's outline of the model and put in our own words.

• →Parts are normal. The model treats the mind as naturally divided into parts, each with its own role. An inner critic or a people-pleaser is not proof that something is broken.
• →Managers are protectors that work ahead of time, running day-to-day life and trying to keep you in control so painful feelings stay out of reach.
• →Firefighters are protectors that react. When old pain breaks through anyway, they move fast to put the feeling out, in ways that can include extreme behaviour such as a binge.
• →Exiles are younger parts carrying hurt from earlier experiences, including trauma. They are kept isolated to protect the person from feeling their pain, and protectors work to keep those feelings from surfacing.
• →Burdens are painful beliefs and emotions picked up from hard experiences. In the model, parts become extreme because they carry burdens, not because they are bad.
• →The Self is not a part. Schwartz describes it as a calm, curious, compassionate core that cannot be damaged and can lead the inner system. In an interview about the book, he described eight qualities of the Self, among them curiosity, calm, compassion and courage.
• →Unburdening is the model's term for helping a part release what it carries and return to a less extreme role. We describe its purpose only; the steps belong with the book and, where trauma is involved, with a trained therapist.

The title names a stance as much as a theory. In a 2013 article in the Journal of Clinical Psychology, Schwartz described how accepting all parts, even destructive ones, can lead to those parts changing. Our article on understanding IFS therapy covers the model in more depth, and our guide to The Body Keeps the Score looks at how a parts-and-Self approach sits among the trauma treatments that book surveys.

Why Does No Bad Parts Use Spiritual Language?

Schwartz's view of the Self is partly spiritual, and he says so. In a Sounds True interview about the book from June 2021, he compared the Self to Buddha nature or Atman in other traditions, and described it as something more like a field than an individual thing.

If that framing speaks to you, it can give the book a hopeful centre. If it does not, it is reasonable to read those passages as Schwartz's own view rather than established science. Critics have pressed this point: Jess McAllen, writing in The Nation in April 2025, questioned his position that parts are not simply metaphors, and reported critics' concerns about spiritual ideas that have entered IFS practice, such as unattached burdens.

What Does the Research Say About IFS?

The research is early and small. These are the main studies, with their limits:

• →Rheumatoid arthritis (2013). A proof-of-concept trial randomly assigned seventy-nine people with rheumatoid arthritis to a nine-month IFS-based programme or to a control group that received mailed educational materials about the condition. After the programme, the IFS group improved more than the control group on overall pain and physical function. A year later, improvements in self-assessed joint pain, self-compassion and depressive symptoms were sustained, while anxiety, self-efficacy and disease activity showed no sustained improvement. The authors called the programme feasible and acceptable (Shadick et al., 2013, Journal of Rheumatology). It is not evidence that IFS treats arthritis.
• →Depression (2017). Thirty-seven female college students with depressive symptoms were randomly assigned to IFS or to usual treatment (CBT or interpersonal therapy). Symptoms fell in both groups, with no significant difference in how much or how quickly; the authors call the evidence preliminary (Haddock et al., 2017, Journal of Marital and Family Therapy).
• →PTSD (2021). Seventeen adults with PTSD and histories of multiple childhood traumas received sixteen ninety-minute IFS sessions. The authors report significant decreases in PTSD symptoms, depression and a set of related difficulties that includes dissociation, along with a medium-sized change in the expected direction for self-compassion (Hodgdon et al., 2021, Journal of Aggression, Maltreatment & Trauma). The limits: no control group, a one-month follow-up, and Schwartz among the co-authors.
• →PTSD in an online group (2026). Sixty adults with PTSD were randomly assigned to an online IFS-based programme or to a nature-based stress reduction programme, each made up of sixteen weekly group sessions and eight individual counselling sessions held every two weeks. Symptoms fell significantly in both, with no significant difference between them, though the IFS group attended more group sessions and reported higher satisfaction with the group (Joss et al., 2026, Psychological Trauma). It was mainly a group programme, not standard one-to-one IFS therapy.
• →The overall picture (2025). A scoping review found twenty-seven studies, seventeen of them case studies and two randomized controlled trials. It called IFS promising, particularly for chronic pain, depression, PTSD, self-compassion and self-forgiveness, but said the current body of research remains limited in scope (Buys, 2025, Clinical Psychologist). Its stated starting point was that peer-reviewed research on IFS had not been brought together, leaving its standing as an effective treatment unclear.

You may also see IFS described as recognized by the US Substance Abuse and Mental Health Services Administration (SAMHSA). That is history, not a current endorsement. According to the Foundation for Self Leadership, an IFS-affiliated organization, IFS was posted on SAMHSA's registry of evidence-based programs (NREPP) in 2015 on the basis of the 2013 arthritis trial. The registry's listings were frozen in January 2018, and it was taken offline later that year.

How Have Clinicians Responded to IFS?

Writing for the Society for the Advancement of Psychotherapy (Division 29 of the American Psychological Association) in 2024, Lisa Brownstone, Madeline Hunsicker and Amanda Greene argued that the model's popularity, in therapy practice and online, has run ahead of the research behind it (Society for the Advancement of Psychotherapy, 2024). Among their worries: online content can invite people to try IFS techniques with no therapist involved; thinking in terms of separate parts could add to confusion for people who have trouble telling what is real; people with dissociative disorders may need gradual care aimed at bringing experiences back together; and former clients have sued IFS practitioners, alleging that false memories were introduced.

These concerns do not settle whether IFS helps, but they are a reason to hold the book's more hopeful claims lightly until stronger research is available.

Can You Do the Exercises in No Bad Parts on Your Own?

Partly. In the same Sounds True interview, Schwartz said some people can do a great deal on their own with the book's exercises or his online meditations, but that for his own deepest work with exiles he needs someone with him, because doing it alone feels too frightening. He also cautioned that pushing past protectors to reach exiles can provoke a strong reaction from those protectors later, and described seeking their permission first.

Noticing and naming parts is reflection. Approaching exiles and the memories they carry is therapy. Our article Can I do IFS on my own? sets out where that line sits. If an exercise leaves you flooded, numb or shaken for days, treat that as a signal to stop and get support; our guide to the window of tolerance explains what that kind of overwhelm can look like.

Who Is No Bad Parts For, and Who Should Read It With Support?

The book may suit you if you are curious about IFS and want it explained by the person who developed it, if you are hard on yourself, if you are considering IFS therapy and want to learn the language first, or if you are open to spiritual ideas sitting alongside psychology. If a harsh inner critic is what draws you to it, our guide to Pete Walker's Complex PTSD: From Surviving to Thriving looks at another clinician's account of self-attack.

Consider reading it slowly, with a therapist's support, if:

• →You carry significant trauma, and the exercises stir up more than you can settle. Our page on trauma therapy describes structured support.
• →You dissociate: you lose time, feel unreal, or watch yourself from outside.
• →You have had periods of struggling to tell what is real, such as psychosis.
• →Your life feels unstable right now, or the book is standing in for care you need.

Is No Bad Parts Worth Reading?

For someone who wants to understand IFS from its creator, it is a reasonable place to start, with three caveats. Schwartz has a stake in the model, so weigh what the book suggests IFS can do against the research above. The spiritual framing is built into how the Self is described, so it will suit some readers more than others. And the exercises are a starting point for reflection; deeper trauma work is safer with a trained therapist, a caution that echoes Schwartz's own account of needing someone with him for his deepest work.

Its core stance, meeting even destructive habits with curiosity instead of contempt, is worth considering whether or not you ever try IFS. Reading the book is not a treatment, and it does not replace an assessment by a qualified professional.

How Do the Ideas in No Bad Parts Relate to Therapy at TEO?

In therapy, parts work can happen with a trained clinician who sets the pace, checks with protectors before approaching painful material, and watches for signs of overwhelm, which a book cannot do.

At TEO Counselling, Mohamad Shabib, MACP, CCC, is trained in Internal Family Systems (Levels 1 and 2) and uses parts work within IFS-informed therapy. He is a Registered Psychotherapist (Qualifying) with the College of Registered Psychotherapists of Ontario (CRPO) and works online with clients in British Columbia, Ontario, Alberta, Saskatchewan, Manitoba, and Newfoundland and Labrador, in English or Arabic. His training also includes Advanced EMDR training through an EMDRIA-approved programme, CBT for Trauma (Levels 1 and 2) and DBT, so parts work is one option rather than the only route.

Individual sessions are $150 for 60 minutes, and no referral is needed. The first step is a free 15-minute consultation by video or a scheduled phone call, booked online.

This guide is commentary, written to help you decide whether No Bad Parts is for you. It is not a substitute for reading the book, and it is not a substitute for professional help. If you would like to talk through whether parts work fits what you are carrying, book a free consultation online, or text (519) 760-5211 with a question first.