This document summarizes instructions for participants to the CLEF-HIPE-2020 shared task. HIPE (Identifying Historical People, Places and other Entities) is a named entity processing evaluation campaign on historical newspapers in French, German and English, organized in the context of the impresso project and run as a CLEF 2020 Evaluation Lab. More information on the website: https://impresso.github.io/CLEF-HIPE-2020/