PUBLICATIONS
What Are Ego States, Anyway? (2025 article by Cynthia Good that takes readers on a tour of how the "ego state" concept has evolved over time)
Ego State Therapy (2022 brochure by Cynthia Good that provides a brief introduction to EST)
Protocol- vs. Principle-Based Therapy (2025 article by Cynthia Good that posits that EST is a primarily a principle-based therapy even though many EST-related protocols have been developed.)
Ego State Therapy International Newsletter (open access newsletter sharing interviews, publications, research, training opportunities, and global updates)
Somatic Ego State Therapy for Trauma Healing: Whole Again (Zanotta 2024. Offers a rich exploration of EST including strategies for addressing somatic aspects)
Empowering the Self Through Ego‐State Therapy (Phillips & Claire Frederick 2010 open access e-book. EST has continued to develop since 2010, of course, but this book serves as an introduction to EST and includes information about combining EMDR with EST. The authors also present approaches related to clinical hypnosis, for those who are properly trained.)
Inner Strengths: Contemporary Psychotherapy and Hypnosis for Ego-Strengthening (a classic text by Claire Frederick and Shirley McNeal, republished in 2024)
Ego States: Theory and Therapy (Watkins & Watkins 1997).
Ego State Therapy Bibliography (updated annually by Ego State Therapy International)
COMMUNITY
Ego State Therapy Community (an international Facebook community of EST learners, therapists, consultants, and trainers)
Ego State Therapy North America's Facebook Group (ESTNA- and ESTI-approved foundational and advanced EST trainings are announced here)
Ego State Therapy North America (website offering resources, ESTNA-approved training opportunities, a directory of therapists who have accomplished ESTNA-approved EST training or who are ESTNA-approved Ego State Therapy [EST] Therapists, ....)
Ego State Therapy International (website offering EST information and resources from around the world)
TRAINING
Wendy Lemke (United States, offering ESTNA/ESTI-approved foundational and advanced EST training herself as well as hosting EST workshops by world-renowned EST trainers)
Woltemade Hartman (South Africa, offering ESTI-approved foundational and advanced EST training)
Silvia Zanotta (Switzerland, offering ESTI-approved foundational and advanced EST training)
