Fundamentals of Astrophysics

Covers kinematics, momentum, energy, collisions, rotational mechanics, gravity, and thermodynamics. A clear and well-structured OER textbook from the University of Arkansas.

Julio Gea-Banacloche

A comprehensive introductory physics textbook covering mechanics, thermodynamics, waves, electricity, optics, and modern physics. OpenStax peer-reviewed and CC BY 4.0 licensed.

Paul Peter Urone, Roger Hinrichs

Covers optics, wave phenomena, quantum mechanics, atomic physics, nuclear physics, and particle physics. Part of the OpenStax University Physics series.

Samuel J. Ling, Jeff Sanny, William Moebs

A thorough quantum mechanics textbook covering quantum states, operators, time evolution, angular momentum, hydrogen atom, perturbation theory, and entanglement. Written by the Schiffer Professor of Physics at Oberlin College.

Daniel F. Styer

An exceptionally comprehensive treatment of general relativity, black hole physics, and cosmology. Covers special relativity, GR fundamentals, Schwarzschild, Kerr, and Reissner-Nordstrom black holes, gravitational waves, and the expanding universe.

Andrew J. S. Hamilton