Here are some books that have helped me understand why I was disowned, why it was not my fault, how to cope, and specific strategies for healing and reconciling:
Healing From a Family Rift by Mark Sichel. He's a therapist who was disowned. It was in this book that I first learned the word narcissist as a more specific parenting problem.
The Narcisistic Family by Stephanie Donaldson-Pressman. Your parent doesn't have to have narcissistic personality disorder for this book to apply. Instead, it's more about families who put the parents' needs ahead of the children's. Reading this book gave me a lot of aha moments - why I push people away, something the authors call plastic walls and why children who have grown up in such families have symptoms similar to those of children of alcoholics.
Children of the Self-Absorbed by Nina Brown. Full of self diagnostic check lists and patterns of how children react to these parent types. Some rebel and some do everything to please. I fall into the pleasing camp.
I did recently order I Thought We'd Never Speak Again by Laura Davis but haven't read it yet. Will update this post when I do.
I didn't find anything in my local library but I think some can be borrowed through inter library exchange.
And then because my faith has given me strength throughout my life, a friend gave me Jesus Calling which are daily reflections. When God Winks at You is a good read on the meaning of coincidences (there were a lot around the time of my father's death!) as well as Unfinished Business. If you believe in Karma or the after life, this last book is full of stories that will make you determined to reconcile in this lifetime. And if you have tried and reconciliation is beyond hope, then it's really for the people who have disowned you to resolve and make up for their failings.
Please do let me know if there are books you too have found helpful.