Research identifiers: ORCID, DOI, and the issue with Wang and SmithERIC (Ebsco) Is the largest education database in the world with coverage of over 800 periodicals, plus non-journal publications called ERIC documents which include: research papers, guides, government reports, speeches and more. Topics range across all aspects of education research and practice. ERIC contains more than 1.4 million records and links to more than 337,000 full-text documents from ERIC back to 1966.