Über die spezielle und die allgemeine Relativitätstheorie vs Progress in optics: Which Should You Read?

Über die spezielle und die allgemeine Relativitätstheorie Albert Einstein · 1917 ★★★★☆ 4.2 164 pages · ≈ 3 h 02 m · Challenging

Einstein's own explanation of his theory for those who do not have a mathematical background and are unfamiliar with physics.

Progress in optics Emil Wolf · 1963 ★★★★☆ 3.8 Moderate

Principles of Optics is one of the most highly cited and most influential physics books ever published, and one of the classic science books of the twentieth century. To celebrate the 60th anniversary of this remarkable…