There is a growing movement to make educational resources open, that is free of legal, financial, and technical barriers to use and share. Below are links to open educational resources (OER), specifically open textbooks related to physics.
At Armacost Library, books are organized with the Library of Congress classification system, and are grouped together by topic. Refer to the following while browsing through the stacks on the third floor. (See map.)
QB: Astronomy
QC: Physics