His writings include The Formative Years of Relativity: The History and Meaning of Einstein's Princeton Lectures (with Jürgen Renn, Princeton University Press, 2017) and The Road to Relativity: The History and Meaning of Einstein's "The Foundation of General Relativity", Featuring the Original Manuscript of Einstein's Masterpiece (with Jürgen Renn, Princeton University Press, 2017), and Einstein on Einstein: Autobiographical and Scientific Reflections (with Jürgen Renn, Princeton University Press, 2020).