Trauma content :

how to deal with flashbacks (and intrusive thoughts linked to trauma)

How to overcome shame and prevent the trauma from contaminating too many other areas of life (trauma phobia, etc., self-shame).

Incest and its consequences in the adult's current relationship (e.g.: as an adult, you find yourself back in an abusive relationship because that's what you know).

In short, delve deeper into the question of trauma and how it works (displacement of affect, reviviscence, phobia, etc.).