(EINSTEIN, ALBERT.) FREUNDLICH, ERWIN
Die Grundlagen der Einsteinschen Gravitationstheorie. Mit einem Vorwort von Albert Einstein. Berlin: Springer, 1916
FIRST EDITION. This work on Albert Einstein’s theory of gravitation contains a foreword by Einstein. Freundlich is best known for his attempts to experimentally test the general theory of relativity using astronomical observations based on the gravitational redshift.
The Psychological Portrait: Marcel Sternberger’s Revelations in Photography. Foreword by Phillip Prodger.. New York: Skira Rizzoli, 2016
First edition, one of 100 copies of the Deluxe Estate Edition, signed and numbered by the author and accompanied by your choice of one of four 8 x 10 inch archival pigment photographs (Einstein, Freud, Shaw, or Kahlo).