Directory of Open Access Books
Directory of open-access academic books from a range of publishers and disciplines.
doabooks.org
Further study
Open books
Open-access textbooks, books and long-form learning materials.
12 resources
OAPEN
Open-access academic books, especially useful for scholarly reading and research contexts.
oapen.org
Open Access Texts — Mathematics
Open-access undergraduate Mathematics textbook directory.
openaccesstexts.com
Open Logic Project
Open-source advanced logic materials, useful for proof, logic and computation pathways.
openlogicproject.org
Open Textbook Library — Mathematics
Directory of open textbooks in undergraduate Mathematics and related subjects.
open.umn.edu
OpenStax Calculus
Free online and PDF calculus textbook series, useful for transition to undergraduate calculus.
openstax.org
OpenStax College Physics
Free algebra-based Physics textbook suitable for broad school-to-university transition study.
openstax.org
OpenStax University Physics
Free calculus-based Physics textbook series suitable for undergraduate-level study.
openstax.org
Project Gutenberg
Large collection of public-domain e-books, including classic scientific and mathematical texts.
gutenberg.org
The Feynman Lectures on Physics
Caltech-hosted online edition of the classic undergraduate Physics lectures.
feynmanlectures.caltech.edu
The Theoretical Minimum
Structured theoretical physics learning route associated with Leonard Susskind’s lectures and books.
theoreticalminimum.com
Wikibooks
Open-content textbooks and learning materials across a range of subjects.
en.wikibooks.org
Note. Resources are grouped by purpose rather than ranked. Inclusion does not imply endorsement, sponsorship or affiliation, and no commission is received for links on this site. External resources may change, so users should check suitability, accuracy, accessibility, copyright and access requirements before use.