- Monthly downloads
- 1.5 million+
OAPEN
A world of scholarly books:
Open to all, built to last.
OAPEN connects libraries , publishers , researchers , and funders with a global infrastructure for peer-reviewed open access books to advance research and the public good.
Learn about how we support our community.
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Our collection, in numbers
These numbers reflect the collective global ambition to realise a fully open access (OA) books future.
- Open access books
- 40,000+
- Participating publishers
- 450+
- Languages represented
- 80+
The latest from OAPEN
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Spotlight
Forthcoming event attendance
Come meet us in person at these conferences. This is a rolling list and as new conferences and events are added older ones will be removed, so make sure to check back regularly!
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Spotlight
Introducing OAPEN’s new visual identity
The Hague, 1 October 2025 We’re thrilled to share an exciting new update for OAPEN. Today, we unveil our refreshed visual identity – including a new logo – that better reflects who we’ve become, what we...
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Spotlight
Job Vacancy: Administrative Assistant position at OAPEN & DOAB
We’re looking for a proactive and organised Administrative Assistant to support our finance, HR, and administrative operations. You don’t need to be an expert in finance or HR — experience or familiarity with these areas...
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Blog post
Protecting Stability and Access: How We’re Safeguarding the OAPEN Library and DOAB Against Bot Traffic Surges
We want to share an important update regarding the temporary access issues that some of our community may have recently experienced on our platforms. We are fully aware of the problem and are working tirelessly to resolve...
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Blog post
Blog Post: Introducing Our New Head of Technology, Anna Wałek
We are thrilled to announce that Dr. Anna Wałek has joined the OAPEN Foundation as our new Head of Technology. Anna brings a unique and powerful combination of strategic vision, deep expertise in open science infrastructure,...
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OAPEN presents the
OA Books Toolkit
For authors
The Toolkit offers clear guidance on open access (OA) book publishing for researchers and authors, and supports policy makers in shaping effective OA policies for books.
Our funders’ collections
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DFG – German Research Foundation -
EU - European Union -
FWF - The Austrian Science Fund -
Knowledge Unlatched -
NWO - The Dutch Research Council -
ScholarLed -
SCOAP3 - The Sponsoring Consortium for Open Access Publishing in Particle Physics -
SNSF - Swiss National Science Fund -
UKRI - UK Research and Innovation -
Wellcome