The Collected Papers of Albert Einstein, Volume 7 (English): The Berlin Years: Writings, 1918-1921. (English Translation of Selected Texts) (Paperback)

Relativity: The Special and General Theory (Hardcover)

The Collected Papers of Albert Einstein, Volume 17 (Translation Supplement): The Berlin Years: Writings and Correspondence, June 1929-November 1930 (Paperback)

Relativity: The Special and the General Theory (Hardcover)

Why War? A Correspondence Between Albert Einstein and Sigmund Freud (Warbler Classics Annotated Edition) (Paperback)

Einstein Relativity Happiest Thought (Paperback)

The Collected Papers of Albert Einstein, Volume 9: The Berlin Years: Correspondence, January 1919 - April 1920 (Hardcover)

The Collected Papers of Albert Einstein, Volume 6 (English): The Berlin Years: Writings, 1914-1917. (English Translation Supplement) (Paperback, Revised)