| Optics | |
| This free pdf physics book includes the following topics: The Ray Model of Light, Images by Reflection, Refraction and Images and Wave Optics. | |
| The Modern Revolution in Physics | |
| This free pdf physics book includes the following topics: Relativity, Rules of Randomness, Light as a Particle, Matter as a Wave and The Atom. | |
| Discover Physics | |
| Discover Physics is a conceptual physics textbook intended for students in a nonmathematical one-semester general-education course. | |
| Simple Nature | |
| Simple Nature is a physics textbook intended for students in a three-semester introductory calculus-based course. | |
| The Age of Einstein | |
| The Age of Einstein, is a brief introduction to Einstein's Theories of Special and General Relativity. It is a book for the inquisitive general reader who wishes to gain an understanding of the key ideas put forward by the greatest scientist of the 20th-century. | |
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