Lydia's Party by Margaret Hawkins

It's January in Chicago and Lydia is having her annual party for her friends, which she's hosted for almost twenty years.  But this year, Lydia is filled with apprehension, knowing that she only has a couple of months to live and wondering how she'll tell her closest friends.  With most of the book taking place over one day, Lydia's regrets and the longings for things she wished she'd done differently are laid bare. Lydia's Party explores the issues of friendship and loss.  For readers who enjoy Stewart O'Nan. It will be published in January.