Here are books I may recommend to people who have experienced trauma.
Complex PTSD: From Surviving to Thriving - Pete Walker
While a little on the technical side, it is a great starting point and gives further resources to dive deeper into specific areas of interest.
Adult Children of Emotionally Immature Parents - Lindsay Gibson
Unfortunately, we don’t all have secure and safe relationships with our parents. This book doesn’t blame parents, but it does take a realistic look at what you can do to heal and grow from less than ideal experiences.