Breast Cancer Care is a breast cancer support charity in the UK. Their website is full of really helpful information for anyone who is going through breast cancer, either as a patient or the family member/friend of one.
In particular though, we think their Publications section is extremely useful. You can download or order many really helpful guides on everything to do with breast cancer and be sure the information is accurate and impartial.
For example, if you set the filters on it to show you the publications they have in the category of Treatment and side effects, you get 27 publications on everything from breast cancer and hair loss to breast reconstruction, menopausal symptoms and breast cancer to individual publications on each type of breast cancer hormone therapy, including Tamoxifen, Arimidex and Herceptin, to name a few.
There is also a helpful booklet on living with lymphoedema after breast cancer.