"A classic of physics ... the first systematic presentation of Einstein's theory of relativity." — British Journal for Philosophy and Science. Long one of the standard texts in the field, this excellent introduction probes deeply into Euclidean space, Riemann's space, Einstein's general relativity, gravitational waves and energy, and laws of conservation.
Here's a sample of other books in this Dover category
The Riddle of Gravitation: Revised and Updated Edition by Peter G. Bergmann Nonmathematical introduction to conceptual foundations of both Newton's and Einstein's theories of gravity features updated material on gravity waves, singularities, and other current topics. 88 illustrations. 1968 edition.
Matter and Motion by James Clerk Maxwell Great physicist's elegant, concise survey of Newtonian dynamics, from simple particles to systems beyond complete analysis. Considered one of the finest elementary scientific treatises ever written. Notes and Appendixes.
The Continuum: A Critical Examination of the Foundation of Analysis by Hermann Weyl Concise classic by great mathematician and physicist deals with logic and mathematics of set and function, concept of number and the continuum. Bibliography. Originally published 1918.
The Theory of Relativity by R. K. Pathria Graduate-level text elaborates on physical ideas underlying relativity, examining special theory (space-time transformations, four-dimensional formulations, mechanics, optics, electromagnetism), and general theory (space-time continuum, gravitation, experiments, and relativistic cosmology). 1974 edition.
Forces and Fields: The Concept of Action at a Distance in the History of Physics by Mary B. Hesse This in-depth look at the science of ancient Greece examines the influence of antique philosophy on 17th-century thought, plus modern concepts: quantum mechanics, wave-particle duality, the uncertainty principle. 1961 edition.
The Concept of Nature by Alfred North Whitehead The brilliant mathematician explores the problems of substance, space, and time; criticizes Einstein's method of interpreting results; and offers an alternative theory of the four-dimensional space-time manifold. 1920 edition.
The Concept of a Riemann Surface by Hermann Weyl, Gerald R. MacLane This classic on the general history of functions combines function theory and geometry, forming the basis of the modern approach to analysis, geometry, and topology. 1955 edition.
Space and Time by Emile Borel This classic covers geometry and the shape of the earth, space and time in astronomy, abstract geometry and geographical maps, continuity and topology, the propagation of light, more. 1926 edition. 15 figures.