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.

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Our collection, in numbers

These numbers reflect the collective global ambition to realise a fully open access (OA) books future.

Monthly downloads: 1.5 million+

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
Launch of OPERAS-NL: collaboration between OAPEN and KNAW Humanities Cluster (HuC)

Press Release: The Hague / Amsterdam, 17 November 2025 The OAPEN Foundation (OAPEN) and the KNAW Humanities Cluster are collaborating...

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Blog post
OAPEN Library Dashboard update – IRUS-UK Data Feed Restored

We are pleased to confirm that as of 9 February 2026, the IRUS-UK service has resumed processing OAPEN Library usage data. The Dashboard is now receiving updates again, and publishers will have access to current usage statistics...

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Blog post
Pade Awọn Aṣojú OAPEN & DOABÌfọ̀rọ̀wánilẹ́nuwò pẹ̀lú Dókítà Sadiat Adetoro SalauAṣojú DOAB fún Nàìjíríà

Kí ni ó fà ọ́ láti darapọ̀ mọ́ DOAB gẹ́gẹ́ bí aṣoju? Ìwúrí mi láti darapọ̀ mọ́ DOAB gẹ́gẹ́ bí aṣojú in Nigeria wá láti inú ìjìbára mi pẹ̀lú pẹpẹ DOAB fún ìgbà pípẹ́ gẹ́gẹ́ bí olùṣètò-ìwé ni ile-ìkàwé tí mo tiń ṣiṣẹ́; Mo ti...

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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.

Go to the Toolkit →