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Data delivery options

User guide for data delivery options using APIs and XML

Web of Science data quality

Web of Science Core Collection provides a meticulously indexed dataset representing research from high quality journals, conferences, and books spanning the globe and 254 science, social sciences, arts, and humanities disciplines.

Total number of records

92.3 million+

Total number of cited references

2.2 billion+

Number of journals covered (active and inactive)

31,620

Number of conferences covered

308,222

Number of books covered

151,855

First year of journal coverage

1900

First year of conference coverage

1990

First year of book coverage

2005

The Web of Science Core Collection includes several individual editions:

  • Journal editions:
    • Science Citation Index Expanded (SCI-EXPANDED) --1900-present
    • Social Sciences Citation Index (SSCI) --1900-present
    • Arts & Humanities Citation Index (A&HCI) --1975-present
    • Emerging Sources Citation Index (ESCI) --2005-present
  • Conference Proceedings Citation Index (CPCI) --1990-present
  • Book Citation Index (BKCI) --2005-present

Some key data elements:

  • Persistent ResearcherID identifier applied to all authors in the dataset + ORCID identifiers when available
  • Funding acknowledgements, including agency and grant numbers
  • Full author and institutional affiliation information to enhance your research and collaboration analyses
  • Extensive unification of institution names to aggregate complex naming variations and sub-organizations (read more)

Further reading

See how thought leaders in the Institute for Scientific Information (ISI) are using Web of Science data. Powered by Web of Science data, our Global Research Reports and Insights papers draw on our unique industry insights to offer analysis, ideas and commentary to enlighten and stimulate debate. 


View the latest reports here.

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