Open access is a publishing model that aims to reduce barriers to access to research. Open access provides free public online access to research literature and other scholarly works. Open access models shift the cost of publication from the reader to the author.
There are many approaches to open access, and although none are cost-free, these approaches reduce the cost of research dissemination while maintaining high levels of rigor and quality, and increasing research access and visibility. While open access tends to focus on journal literature, some researchers also explore options for making book publications freely and publicly available.