The Meaning of Relativity: Four lectures delivered at Princeton University, May, 1921

"The Meaning of Relativity" by Albert Einstein is a book published in 1922 based on lectures delivered at Princeton University in May 1921. This work represents Einstein's final comprehensive attempt to explain his theory of relativity to a broad audience. Through four lectures, Einstein presents the physics and mathematics of both special and general relativity, aiming to make the fundamental principles of his groundbreaking theories accessible to non-specialists. Later editions include appendices exploring his unified field theory efforts. (This is an automatically generated summary.)