This has probably being said many times before, but Einstein&#x27;s book on Relativity is still worth reading as an introduction to his ideas on Special and General Relativity. A 100th Anniversary Edition has been released [1] which includes extra commentary that acts as a reading companion and includes a look at the various foreign-language editions of his book that makes you realise just how far his ideas spread.<p>[1] &quot;Relativity: The Special and the General Theory&quot;, 100th Anniversary edition by Albert Einstein, With Commentaries and Background Material by Hanoch Gutfreund and Jürgen Renn [ <a href="http:&#x2F;&#x2F;press.princeton.edu&#x2F;titles&#x2F;10434.html" rel="nofollow">http:&#x2F;&#x2F;press.princeton.edu&#x2F;titles&#x2F;10434.html</a> ]