Relativity is the subject that convinced generations that physics is beyond them — not because it is unlearnable, but because it is usually taught in the wrong order. The ideas genuinely violate everyday intuition: time slows, lengths contract, gravity bends space. Meet those claims first as equations and they feel like a trick; meet them first as ideas and they become a wonder you actually understand.
This path builds that understanding gently. Start with intuition and history, then a rigorous but readable treatment of the concepts, then the real mathematics of general relativity. Each stage prepares you for the strangeness of the next, so nothing arrives before you are ready for it.
Get the intuition
Begin with Einstein's own Relativity : the Special and General Theory, written for the general reader and still remarkably clear about what he was actually thinking. Then E=MC2 A Biography of the Worlds most Famous Equation by David Bodanis tells the human and historical story behind mass-energy equivalence, making the equation feel alive. Six not-so-easy pieces by Feynman explains the core physics in his inimitable, intuition-first voice — the perfect bridge toward rigor.
Understand the real physics
Now go deeper without drowning. Spacetime physics by Taylor and Wheeler is the beloved introduction to special relativity that teaches you to think in spacetime rather than fight it. The Einstein theory of relativity by Lillian Lieber is a charming, accessible walk toward the general theory, and General relativity from A to B by Robert Geroch builds the conceptual foundations of curved spacetime with almost no heavy math.
Reach the mathematics
For the full picture, step into the real theory. The Elegant Universe by Brian Greene places relativity in the grand context of modern physics and the search for unification. Then Gravity by James Hartle offers a "physics first" introduction to general relativity that keeps the ideas central, and A first course in general relativity by Bernard Schutz is the standard rigorous textbook — the one that finally lets you compute what the earlier books only described.
Follow the path in order and relativity stops being intimidating and starts being astonishing — the ideal launchpad into the black-holes path next door.