This is an excellent book, written in the “Master’s” own style and faithfully translated from the German by Robert Lawson. The translation dates to 1920 and new readers may find the English a little quaint, but for all that, it is a great effort at presenting in “plain speak”, the concepts of Relativity.

The book starts with a lucid explanation of the Train and Platform example of Galelian Relativity and then proceeds to highlight the incompatibility between the principle of relativity and the constancy of the speed of light. Without encumbering the reader with the Maths (found in the appendices) the ideas of time dilation and length contraction are discussed. The General Theory is developed via a fine example: that of an observer on a rotating disk.

This is a good complement to the overtly scientific/mathmatical books on the subject. Unfortunately,, despite its many qualities, just like many of the alternatives of this genre, Einstein’s book does not fully succeed in explaining the complex concepts to the lay reader. Rather, this is a nice little book that will be suitable for a good calibre Maths/Physics student in the sixth form/high school.


A rare, mid-ability book on a very difficult subject.   January 18, 2002
 28 out of 28 found this review helpful

This book is excellent, as for for the first time on any book I've read on the subject, it has lots of mathematics, BUT NO ROCKET SCIENCE! As a result, its an excellent read for someone who's done say A-level maths at school. It is unique as most books I've looked at are either for the complete mathematical layman with very few equations, e.g. Einsteins Universe by Nigel Calder, or are the sort geared towards mekon-headed NASA engineers with IQ's of 200... The discussion on General relativity is very sparse, with only the basic ideas outlined, but the reasoning behind special relativity is beautifully described, and for the first time out of any book I've erad on the subject I feel that I have started to understand it. The book also has an appendix with mathematical 'work-throughs' as to how the equations came about, which is very nice but unfortunately a small number of steps are left out which is annoying. The book is brief, but will inspire you to dig out and read more on the subject from different authors. And lastly, let's be honest here, this book is VERY inexpensive so one can hardly grumble at it's brevity. My advice: if you didn't understand this book, just read and re-read the initial chapters on the Lorentz transformation, which is the basic idea behind it all, and the penny will finally drop!