Scopus is one of the very largest abstract and citation database of peer-reviewed literature, including scientific journals, books and conference proceedings with access to over 54 million records from 22,000 titles and 5,000 publishers, while delivering a comprehensive overview of the world's research output in the fields of science, technology, medicine, social sciences, and select arts and humanities. Coverage from 1996 on is very comprehensive, while pre-1996 material was added retrospectively making the coverage progressively less complete the further one moves back prior to 1996.
Subject coverage is greatest in the sciences with roughly 30% of content related to Physical Sciences, 32% Health Sciences, 15% Life Sciences and 23% Social Sciences. At this point, Scopus uniquely indexes over 70,000 books and more than 420 book series, 6.5 million conference papers from over 17,000 events, and 24 million patents in addition to the 21,000 journals (that include 2,800 gold open access journals) and “articles-in-press” from almost 4,000 journals. Publisher coverage by percentage ranking include: Elsevier (publisher-vendor of Scopus), Springer, Wiley-Blackwell, Taylor & Francis and Sage with thousands of publishers' content in total (e.g. Nature Publishing Group, Cambridge, Oxford, Wolters Kluwer and IEEE).
Scopus provides added value features such as smart tools to track, analyze and visualize research. Users may analyze citation data over time, with author driven h-index, quantitative publishing output or via journal performance. Author identifiers are optional and driven by fields like affiliation identifier, they are easily integarated into ORCID.
Scopus interoperates well with other Elsevier products like ScienceDirect and Engineering Village.
More information is available from the vendor website [Elsevier] including:
-33 million records extending back to 1996
-21 million records from 1823-1996