Albert Einstein: A Biographical Portrait.

REISER, Anton. [Albert Einstein].

Item Number: 101543

London: Thornton Butterworth Limited, 1931.

First edition of this Einstein biography written by Rudolf Kayser, a German literary historian and husband to Albert Einstein’s stepdaughter Ilse under the pseudonym Anton Reiser. Octavo, original cloth, frontispiece of Einstein. Near fine in the rare original dust jacket with some wear. With a foreword by Albert Einstein.

Albert Einstein developed the general theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). Einstein's work is also known for its influence on the philosophy of science. Einstein is best known in popular culture for his mass–energy equivalence formula E = mc2 (which has been dubbed "the world's most famous equation"). He received the 1921 Nobel Prize in Physics for his "services to theoretical physics", in particular his discovery of the law of the photoelectric effect, a pivotal step in the evolution of quantum theory (David Bodanis).