Albert Einstein transformed our understanding of the universe-but he didn't do it alone. The Road to Relativity traces the full arc of the relativity revolution, from the overlooked protorelativity period (1880-1905) through Einstein's 1905 breakthrough and the long road to acceptance into the 1930s. Dan Siegel explains the radical reconception of space, time, mass, and energy, along with the novel logic and structure that set Einstein'swork apart, bringing a clear understanding of relativity to readers without a background in physics. Retracing the steps taken by Einstein and his predecessors and followers, the author leads readers, step by step, to a full understanding of relativity. Vivid analogies and inventive expository strategies clarify difficult concepts such as time dilation, length contraction, and E = mc². The Road to Relativity also reexamines Einstein's intellectual precursors and the contested reception of his ideas, reshaping our view of one of science's greatest revolutions and offering a modern, nuanced account of both its making and its meaning-one that highlights both Einstein's singular insight and the collaborative groundwork that made it possible.