Bit of shameless self- and buddy-promotion here.
If you haven't yet bought your mum a mother's day present, or told your reluctant kids what they ought to buy you, can I recommend the following couple of books?
Diamonds and Pearls - anthology of stories by women's magazine writers (including one from me) and sold in aid of a breast cancer charity
or if you or your mum prefers a novel, what about
Mothers and Daughters - Kate Long's latest novel now out in paperback (and previously entitled A Mother's Guide to Cheating)
Both guaranteed great reads and I am of course in no way biased, oh no.