Simply

Harris structures the chapter around three key figures to build the foundation: Freud — Shows the problem (complex, hard-to-understand theories about the unconscious, Id/Ego/Superego). Penfield — Provides the scientific/biological evidence (the brain records experiences in detail, including emotions from childhood). Berne — Supplies the practical solution : a simple, usable model that bridges the gap.                                                                     Berne is a psychiatrist that introduced the idea:  Transactional Analysis Definition Transactional analysis is defined as "the unit of social interaction"           - - - Thankfully I had AI revise this because I would have missed framing it this way, which after reading Chapter 1, I...