This is a practical guide to help you find and interpret bibliometric data for research publications, using free-to-access and paid-for information sources.
Bibliometrics: a definition The statistical analysis of books, articles, or other publications (OED).
Traditionally, bibliometric analysis has focused on the number of citations for a scholarly publication, as evidence of its academic value. The transition to e-publishing and a wider definition of 'research output' has facilitated other forms of data collection, e.g. page views, downloads, social media mentions and more.
Throughout this guide, we use the term indicators instead of metrics. There are very few true 'metrics' of research value; scholarly citations are an indicator - not a measure - of impact and esteem.