1. The Collected Papers of Albert Einstein, Volume 14, The Berlin Years: Writing & Correspondence, April 1923-May 1925. Subjects *PHYSICISTS, *NONFICTION, *TWENTIETH century, *HISTORY Published 2015
2. Prisoners, Lovers, and Spies. Author Bello, Bryan Subjects INVISIBLE inks, NONFICTION, HISTORY Published 2014
3. 100 years of a transformative idea. Author Siegfried, Tom Subjects BLACK holes, ASTROPHYSICS, NONFICTION, HISTORY Published 2015