The Sixteenth International Conference on Knowledge Organization was to have been held in Aalborg, Denmark in July 2020. Cancelled due to COVID-19, the proceedings were published online on 4 December 2020 containing 48 full papers, 17 short papers and 14 posters. Informetric analysis of the proceedings reveals the shifting intension and extension of the knowledge organization domain. International participation was extensive as usual. There is a much larger share of empirical and applied

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... al research, and therefore much less historical or analytical work than before. The shape of the research front continues to revolve around concept theory and domain analysis, but cultural and ethical issues are more prevalent than before, having attained nearly core status. There is new emphasis on concepts around interdisciplinarity and phenomenon-based knowledge organization systems, and facet analytical theory has been extended into new approaches in the linked data environment. There are more journal articles than before. No monographs are highly cited but interdisciplinarity, Wittgenstein, domain analysis and music classification are prominent alongside archival science and ontology construction on the bookshelf for this conference. Among conferences ISKO and its chapters predominate. The discourse represented by the works on ISKO 16's bookshelf seems to be rooted in classical concept theory. There is some concretization of discourse concerning interoperability and the continued distancing from ideas of single or "universal" knowledge organization systems. There is a recurrence of concepts of warrant buttressing the extension of research into issues of culture and identity.