This book was originally written in German by Albert Einstein in 1916 and later translated to English by Robert W. Lawson in 1920. In Einstein's own words, "The present book is intended, as far as possible, to give an exact insight into the theory of Relativity to those readers who, from a general scientific and philosophical point of view, are interested in the theory, but who are not conversant with the mathematical apparatus of theoretical physics."

This new Kindle edition contains all figures and formulas in the original paper edition. In particular, the equations have been carefully typeset with proper scaling, and they are more readable on Kindle. Indeed, in the words of a reader, "a book on Relativity without readable equations makes the book not even worth a penny."

This new Kindle edition contains all figures and formulas in the original paper edition. In particular, the equations have been carefully typeset with proper scaling, and they are more readable on Kindle. Indeed, in the words of a reader, "a book on Relativity without readable equations makes the book not even worth a penny."