When my friend Carolyn told me that she was reading On Pluto and what it was about, I felt an obligation to read it. Having a mother who was diagnosed with Alzheimer’s disease a few years ago, I wanted to see whether O’Brien could help me better understand what she is going through. How unexpected and delightful then to find a book that is not only truly informative, but heartfelt and light-hearted at the same time.
