During this last difficult year, I’ve been involved in making a book with my first sister Nina. Working with her on the page has felt like a safe haven, a return to our childhood. We moved often with our restless and adventuresome parents, the two of us the awkward, unmoored “new girls in school.” But at the end of every day we could count on the sureness of each other, because in every house and every town, we slept in the same room in twin beds. Putting together our book, NOW WE ARE SIXTY, has been another chance for Nina and me to spend time together, side by side. Our 112 pp. book pairs my memoir pieces with Nina’s intuitive, improvisational inks on paper,…