I have CPTSD and BPD too. Times when I mysteriously feel completely different about something, and can't remember what it was ever like to feel otherwise, I've come to understand through a structural dissociation model which has helped. If you find it makes sense to you, there is a book that is moreso a manual for therapists & not self-help, and it's incredibly long so I'm not even all the way through, but even what I did read has been useful. It's called The Haunted Self.

PsychologyToday isn't that great as well, on an in depth level. For me, I've found myself aimlessly surfing through the oversimplified/summaried articles, that only veers on the surface level of things.

• "Emotionally instability" -- but what does that explain?
  
  Honestly, the pathology spreads across so many different disciplines/schools of thought, that I had to go through many different academic literature to grasp a conceptual understanding; attachment psychology, complex traumatic stress, neuroscience, developmental psychology, developmental trauma, object-relations, intrapsychic ego (impulsiveness/ego management/emotional-pull-push with people), dissociation, as well as marital therapy and sociological Asian American (to understand the cultural barriers/friction with mental health, then I'm looking towards understanding MBT and DBT, as a way to empathize.
  
  I've pretty much have most of the "mainstream" BPD books out there, and I think the Borderline Personality Disorder Demystified does a fairly good job providing a detailed overview of the prognosis of those with BPD. However, I've come across Borderline Personality Disorder: New Reasons for Hope again, and I think it may be more promising after skimming through it. I passed on it when I first forayed into BPD literature, instead opting for simpler books; however, I've come to realize that has only lead to the surface level of things as well.
  
  
  As for Randi, her book does more oversimplification which is consequently harmful, than the righteousness of doing good it wistfully intends. It also seems that she is using/projecting the book and her participation in the BPD community as a collective coping mechanism for her past. IDK
  
  Your website is great. I feel research/literature wise, we're reaching a point where we have a good amount research/literature on BPD that provides contemporary answers, but it's still fragmented across cross-topics/disciplines. We have top-experts in their own specialization like Otto Von in PTSD that usually have a chapter on BPD in their textbooks, and I reckon there should be more work from everyone into encompassing a collaborative comprehensive text for this highly niche subject of BPD, that entails not just one sole disciplinary focus.

Books:

• Treating Trauma Related Dissociation
  
• Coping with Trauma-Related Dissociation.
  
• Trauma and Recovery- Judith Herman, M.D.
  
• Trauma-Sensitive Mindfulness
  
• The Body Keeps the Score: Brain, Mind, and Body in the Healing of Trauma
  
• Complex PTSD: From Surviving to Thriving: A Guide and Map for Recovering from Childhood Trauma
  
• Understanding and Treating Chronic Shame: A Relational/Neurobiological Approach
  
• Healing the Fragmented Selves of Trauma Survivors: Overcoming Internal Self-Alienation
  
• The Haunted Self: Structural Dissociation and the Treatment of Chronic Traumatization (Norton Series on Interpersonal Neurobiology)
  
• Waking the Tiger: Healing Trauma
  
• It Wasn't Your Fault: Freeing Yourself from the Shame of Childhood Abuse with the Power of Self-Compassion
  
• Amongst Ourselves: A Self-Help Guide to Living with Dissociative Identity Disorder
  
• The Dissociative Identity Disorder Sourcebook
  
• The Stranger In The Mirror by Marlene Steinberg M.D.
  
• Rebuilding Shattered Lives: Treating Complex PTSD and Dissociative Disorders
  
• Dissociation in Children and Adolescents: A Developmental Perspective
  
• Feeling Unreal: Depersonalization Disorder and the Loss of the Self
  
• Dissociative Identity Disorder: Diagnosis, Clinical Features, and Treatment of Multiple Personality (Wiley Series in General and Clinical Psychiatry) 2nd Edition
  

Agreed, and I would just like to take this opportunity to plug another fantastic book on parts and dissociation: The Haunted Self: Structural Dissociation and the Treatment of Chronic Traumatization