My mother was abusive, she wants to get better but can’t afford therapy, what can she read?

I have been fortunate enough to go to therapy to address the… interesting… childhood I had but my mum isn’t in a position to pay for it for herself. Over the last year she has made an effort to reconcile with me, and I reallyI never would have expected her to even try so this is all uncharted territory for me.

She tried counselling (she was able to get a few free sessions but isn’t able to get more) and actually has apologised and acknowledged that she did not do the best job. I wanted to know if there is a book I could get her that can help her keep going down the right track? I know it’s not my job, but why not help keep a good thing going?

From what I can tell, she has her own unresolved issues from her own mother (and had a childhood I would say was worse than mine). She also really struggles with knowing what to do from here, she can’t go back and redo anything, so doesn’t see what the path forward could be. I am hoping there is a book out there that could offer some insight.

Forever grateful for any suggestions someone might have!