Every curated report in Resonate is accompanied by a Report Glossary that describes how to use the report, what metrics are included in it and what the core metrics mean.
You can read the Glossary by clicking on the blue information icon in the top right corner of the report.
The Report Glossary will also be included in your downloaded files when you export a curated report from the platform, except for csv exports. This affects the Site Affinity Report and the Category Affinity Report. For the Audience Comparison PDF Export - the Glossary will be shown on the last page.