What is the Theory of Relativity? A Must-Read for Einstein Enthusiasts or Anyone Interested in Learning Relativity Some Day!! - A completely new, and modern, translation 2024! This short article was originally written by Albert Einstein at the request of The London Times, in 1919, and it was intended for the general audience. If you are interested in getting a general overview, and the historical context, regarding Einstein's relativity, then this is the BEST introduction for you ( 10 pages). Einstein published his two seminal papers on special relativity in 1905, and he published his field equations for gravity (now known as Einstein's equations) in 1915, which was viewed as the completion of the theory of general relativity. One of the most important predictions of his theory was bending of light in a strong gravitational field. This was confirmed by the English expedition led by Sir Arthur Eddington in 1919, during the solar eclipse, which made Einstein an instant celebrity. This newspaper article was published after Eddington's public announcement of this rather exciting event in history. (It was right after the end of WWI.) It was originally written by Einstein in German, and it is now in the public domain. This short booklet attempts at a new translation to give a somewhat clearer account of what Einstein wanted to convey in his original writing. If you are interested in getting a high-level overview of relativity, then this short booklet is for you! After over 100 years, this article still remains to be the BEST introduction to relativity for the general audience. Einstein's Books by Nutty Physics - With All New, and Modern, Translation Einstein: On the Principle of Relativity (1914) - Published on 4/01/2024 Einstein: What is the Theory of Relativity? (1919) - Published on 4/08/2024 Einstein: On Theoretical Physics (1914) - Published on 5/01/2024 Einstein: A Brief History of the Theory of Relativity (1921) - Published on 6/01/2024 Einstein's Relativity - The Special and General Theories (1917) - To be published on 9/01/2024 Einstein's Original Papers on Special Relativity (1905) - To be published on 10/01/2024 Einstein: Geometry and Experience (1921) - To be published on 11/01/2024 Einstein: Dialogue on the Theory of Relativity (1921) - To be published on 12/01/20