The OAPEN Library contains freely accessible academic books, mainly in the area of humanities and social sciences. OAPEN works with publishers to build a quality controlled collection of open access books, and provides services for publishers, libraries and research funders in the areas of deposit, quality assurance, dissemination, and digital preservation.
OECD iLibrary is the online library of the Organisation for Economic Cooperation and Development (OECD) featuring its books, papers and statistics and is the gateway to OECD’s analysis and data. OECD iLibrary also contains content published by the OECD Development Centre, PISA (Programme for International Student Assessment), International Transport Forum (ITF). Statistics from the International Energy Agency (IEA) and Nuclear Energy Agency (NEA) are available up end 2021.
OECD iLibrary is the online library of the Organisation for Economic Cooperation and Development (OECD). The OECD Working Papers are made available at no charge.
For over 100 years, the Association of Official Analytical Chemists (AOAC) has been meeting the needs of analytical scientists for confidence in analytical results through the development and validation of AOAC Official Methods. Today, AOAC is also meeting the need for fast and easy access to its Official Methods.
OnePetro is a unique library of technical documents and journal articles serving the oil and gas exploration and production industry. It contains journals and conference proceedings sourced from 18 publishing partners.
Open Book Publishers publish monographs and textbooks in the humanities and social sciences, and offer the academic excellence of a traditional press, with the speed, convenience and accessibility of digital publishing.
The Open Society Justice Initiative database brings the Justice Initiative’s scholarship to HeinOnline, providing access to works published by the Justice Initiative in HeinOnline’s fully searchable, image-based format. Unique to this collection is the ability to search by Publication Type, a publication identifier assigned by the Justice Initiative to each of its publications, which organizes their works into the following types: Briefing Paper, Publication, and Report. Browse titles in HeinOnline by Publication Type or use the facet to limit search results.
Textbooks in the Open Textbook Library are considered open because they are free to use and distribute, and are licensed to be freely adapted or changed with proper attribution.
OpenEdition Journals is a platform for journals in the humanities and social sciences. Founded in 1999 under the name Revues.org, it now hosts more than 490 online publications. OpenEdition is developed by the Center for Open Electronic Publishing (Cléo), a public non-profit initiative supported by leading research institutions and whose main mission is the promotion of open access electronic publishing.
Opera in Video contains the most important opera performances, captured on video through staged productions, interviews, and documentaries. Selections represent the world’s best performers, conductors, and opera houses and are based on a work’s importance to the operatic canon.
The Optical Society of America's online library for OSA's publishing content includes the full text proceedings of the OSA's Topical and Major meetings and conferences.
Optical Society Journals are the Optical Society of America's online library for OSA's publishing content. It contains the OSA's flagship, partnered and co-published peer-reviewed journals.
