"Scientific Principles of Relativity" is a technical book that explores the scientific foundations of the theory of relativity in physics. The author, Haiping Cao, presents the theories without hypotheses and relies on deductive methods to derive the results. The book covers various aspects of relativity, including inertial motion, linear acceleration, circular motion, and relativistic dynamics. It provides comprehensive knowledge about the theory of relativity and aims to make the derivation processes as intuitive as possible to facilitate understanding. The mathematical treatments are intentionally kept simple, so that readers with a bachelor's degree in a relevant field should be able to grasp the content well. The principles outlined in the book are both surprising and scientifically grounded, inviting readers to engage deeply with the theory of relativity.