Richard Schwartz holds a PhD in Marriage and Family Therapy and adjunct faculty status at Harvard Medical School, developing Internal Family Systems (IFS) therapy, which conceptualizes the psyche as composed of interactive 'parts' and a core 'Self' that bridges clinical psychology with spiritual development. The evidence base for IFS is still developing relative to gold-standard treatments like CBT and DBT, and its spiritual dimensions appeal to popular audiences but should be distinguished from its clinical applications.
No Bad Parts (2021); Internal Family Systems Therapy (2nd ed., Guilford Press, 2020); Introduction to the Internal Family Systems Model