Justin Shorb As a free OER library, access to our textbooks will always be free. Publishing a book for common use to our bookshelves is also always free. Access to our database of OER questions by verified instructors is also free. Some things scale in cost more than we can maintain without some funding such as our homework and assessment systemsForge,Jupyter, andADAPT for instance. Costs for everything are detailed here: https://libretexts.org/costs
