The 20th IEEE International Conference on Data Mining (ICDM) hosts many co-located workshops, whose papers are traditionally published in a dedicated IEEE CS press proceedings. The purpose of these workshops is to give exposure to the current trends in data mining research, which do not find space or sufficient attention in the main conference tracks either because of the specialised application domain or because of the emerging nature of the field. The aim is to disseminate advances in these emerging fields and to attract more attention and research effort from the community. The quality of the papers and of the final program is guaranteed by an initial selection process of the workshop proposals and by a rigorous peer-review process within each workshop. This volume contains all the papers accepted for publication in the ICDM 2020 workshops and represents an interesting snapshot of data mining methods and applications of emerging and innovative areas of interest. This editorial provides an overview of the workshops included in the final program of ICDM 2020.