Are there different kinds of open access?1
There are typically two forms of open access. Open access definitions suffer from a lack of standardisation within the community, but these types are generally understood to be:
- Gratis open access: the practice of making a work available online free of charge.
- Libre open access: the practice of making a work available online free of charge and with some additional reuse rights, typically granted through a Creative Commons license
Gratis open access removes price barriers, whereas libre open access additionally removes at least some permission barriers, allowing users to copy, redistribute, and/or adapt a work.
The following toolkit article(s) address(es) this question: