Nina Riggs was just thirty-seven years old when initially diagnosed with breast cancer—one small spot. Within a year, the mother of two sons, ages seven and nine, and married sixteen years to her best friend, received the devastating news that her cancer was terminal. Exploring motherhood, marriage, friendship, and memory, Nina Riggs’s breathtaking memoir is brilliantly written, disarmingly funny, and deeply moving, El instante de luz is about how to love all the days, even the bad ones.