Height: 36 in
Width: 24 in
Black and white photograph of Albert Einstein standing at a chalkboard.
Albert Einstein (1879â€“1955) was a theoretical physicist, philosopher and author. Einstein was awarded a Nobel Prize (1921) for his discovery of the law of the photoelectric effect. "Do not worry about your difficulties in Mathematics. I can assure you mine are still greater." - Letter to Barbara Lee Wilson (7 January 1943), Einstein Archives 42-606.