The book that explains Internal Family Systems, and the one that walks you through it.
Verdict
No Bad Parts to understand the model, Self-Therapy to work it. Schwartz created Internal Family Systems and No Bad Parts is his general audience account of what it is and why he thinks parts work matters. Earley's Self-Therapy is a step-by-step manual for running the process on yourself, with scripts and worked sessions. The two are complementary rather than competing, and the order matters: the manual makes far more sense once you have the concept.
| No Bad Parts | Self-Therapy, 3rd Edition | |
|---|---|---|
| Author | The originator of the model | A practitioner and teacher |
| Purpose | Explain and argue for the model | Walk you through doing it |
| Format | Narrative with some exercises | Manual with scripts and sessions |
| Reading difficulty | Low | Moderate |
| Usable solo | Partly | Designed for it |
| Read first | Yes | Second |
You want to know what parts work is and whether the frame speaks to you. Schwartz's core claim, that there are no bad parts and that even the destructive ones are protecting something, is the whole thing in a sentence, and the book is essentially an extended argument for taking that seriously. It is warm, readable, and light on procedure.
You have the concept and want a defined process. Earley breaks the work into named steps, gives you the questions to ask, and includes transcripts so you know what a session is supposed to look like when it is going well and when it is stuck. It is the more useful book to have open in front of you.
Check Self-Therapy, 3rd Edition on Amazon
It is better supported than most things in this space and still less established than people often imply. It has a growing research base and is used clinically, and it appears on some evidence-based practice listings, but the trial literature is smaller than for cognitive behavioural therapy or EMDR. It is a promising and widely used model, not a settled one.
Self-Therapy is written on the premise that you can, within limits, and Earley is reasonably clear about those limits. Working with parts holding significant trauma is not a solo project. If you have a trauma history, dissociation, or find that the work destabilises you, do it with an IFS-trained therapist.
They rhyme. Both are about turning toward what you have exiled rather than away from it. IFS gives that a more concrete procedure and a clinical lineage; Jungian shadow work gives it a mythic and symbolic vocabulary.
Comparison based on published manufacturer specifications and the general consensus of owner reports. We have not tested these units side by side. Confirm current prices and specifications before buying. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Our Self-Therapy review covers the method in detail, along with the honest limits of doing parts work alone when there is severe trauma involved.