No one really expects it, but at some time or another, just about everyone has been - or will be - responsible for giving care, for a sustained period, to someone close to them. Gail Sheehy, who has chronicled every turning point for 20th-century Americans and reported on everything from politics to sexuality, knows firsthand the trials, fears, and rare joys of caregiving. Now she takes you by the hand and shows you that you will get through this.