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Open Access refers to unrestricted online access to creative work or scholarship, typically coupled with reuse rights. These works are available to anyone in the world with an internet connection and a web browser. Payment is not required to access content.
A publication is considered Open Access if:
Gold OA refers to publications that are immediately 100% free and accessible to all. Some Gold OA journals require the authors to pay a fee to support this model read more under this guide's section on paying for open access.
Green OA refers to publications that are available as pre-prints or final peer-reviewed manuscripts, hosted in an institutional or subject repository, but the copyright of the final published manuscript may belong to the publisher. This model usually does not require authors pay a fee; authors need to discuss this option with their journal.
Article Processing Charges
Article processing charges (APCs) are fees paid to the publisher by or on behalf of the author, in exchange for publishing the article on an open access basis: without a paywall and (typically) with an open license such as one of the Creative Commons licenses. These fees vary from publisher to publisher, and range from as little as $1,000 to nearly $12,000 per article. APCs can be charged for articles in fully gold OA journals as well as hybrid journals.
Created by SPARC in conjunction with PLOS and the Open Access Scholarly Publishing Association (OASPA), the HowOpenIsIt? Open Access Guide standardizes Open Access terminology in an easily understandable, comprehensive resource. This guide provides a means to identify the core components of OA and how they are implemented across the spectrum between “Open Access” and “Closed Access”.
