By Kelly Corrigan Ballantine, 2014 Mothers matter. They really do. I have to admit, the topic of this memoir – recollections of the author’s time as a nanny to a family in Australia some twenty or more years ago – did not inspire me to pick it up when it was released last year. But this is Kelly Corrigan. She can write. I realized this about two minutes into the book, which I picked up at an airport bookshop. It was of those decisions you make when you have about five minutes to catch the plane and your Kindle is not charged. I am glad I did not have more time that day, or I would never have read this brilliantly constructed, humorous, tear-inducing book. Kelly Corrigan does not mock, however gently, the foreign culture in which she found herself, as so many “American Abroad” books do. Indeed, Corrigan describes the Sydney suburb in which she found herself as “basically indistinguishable from the one where I grew up.” Nor does she satirize a middle-class family who had to hire a nanny. Because that is not the point. This book is about motherhood. The Tanner children, seven-year-old Millie and five year-old Martin, are motherless because Ellen Tanner had recently died of cancer. Besides her widower, John, in the household also are Evan, Ellen’s twenty-one year old son from a former marriage, and Pop, Ellen’s father, who keeps to himself but does the family laundry. Kelly notes the common difficulties of step-family relationships within the family, as all is revealed gradually. But she never judges, and she weaves what she learns of the family’s profound grief and fragility after Ellen’s loss with a new appreciation of her own mother. Corrigan’s mother Mary is a sharp-tongued character, whose pithy remarks demonstrate her no-nonsense, do-the-right-thing values. Such a mother would naturally be in conflict with a strong-minded young woman like Kelly. Yet, as the book develops, and Kelly begins to understand the depth of the Tanner family’s loss and their courage in just putting each foot forward, one after the other, day after day, she starts to appreciate what her mother gave her. The last twenty five pages of the book reflect on this as Kelly Corrigan recalls her own bout with breast cancer when her children were small. As Kelly Corrigan notes, “Mothers are everywhere.” Except when they’re not. Mother’s Day is coming up. Cherish yours. She’s just irreplaceable.