I need a GREAT book that can educate me about Breast Cancer

HELLLOOO MY LOVELY WARRIORS!!

My mom got diagnosed with stage 4 breast cancer.
I know NOTHING about breast cancer at all. I would LOVE to be educated about it, learn the medication she will be taking, treatment, etc.
I basically will need to start from block 1, the beginning.
What book would you recommend? :]
The best book that can educate me about breast cancer, please.

Thank you for taking the time to read my post and I desperately hope I get some great/awesome/fantastic suggestions<3;;

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