Adah Sachs is a Psychoanalytic Psychotherapist, previously NHS consultant and psychotherapy lead for the London Borough of Redbridge. She lectures, trains and supervises worldwide on complex trauma, attachment and dissociation, and has authored over 100 conference papers, book chapters and journal articles including two books. She is a fellow of the International Society for the Study of Trauma and Dissociation (ISSTD).

Valerie Sinason is an internationally published poet, writer, child psychotherapist, adult psychoanalyst, and lecturer. A former consultant psychotherapist at the Tavistock Clinic, President of the Institute of Psychotherapy and Disability (IPD), Founder and Patron of the Clinic for Dissociative Studies (CDS), and currently serves on the board of the ISSTD.