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 Sidelights on relativity by Albert Einstein, G B. 1891 Jeffery, et all 20100806
 Relativity: The Special and the General Theory (Classic Reprint) by Albert Einstein, 20100604
 A First Course in General Relativity by Bernard Schutz, 20090622
 Relativity: The Special and the General Theory, The Masterpiece Science Edition, by Albert Einstein, 20051122
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 Relativity Simply Explained by Martin Gardner, 19970306
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 General Relativity by Robert M. Wald, 19840615
 Albert Einstein and the Theory of Relativity (Barrons Solution Series) by Robert Cwiklik, 19871026
 Introduction to Tensor Calculus, Relativity and Cosmology by D. F. Lawden, 20030127
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 Inside Relativity by Delo E. Mook, Thomas Vargish, 19910301
 Relativity Visualized by Lewis Carroll Epstein, 1985
