The first AGILE conference on GI-Science took place in 1998, in Enschede, The Netherlands. Since then researchers interested in GI-Science and GIS have met and exchanged ideas and experiences at a European level at the yearly AGILE conference. The conferences are used to initiate and stimulate AGILE Initiatives on specific subjects of special interest within the GI community. In the last few years, AGILE conferences have had two outputs: Full papers from 2020 onwards are published by Copernicus Publications and may be found on this dedicated website. Copyright stays with the authors under an Open Access CCA 4.0 license. Short papers (oral presented or in poster form) are also peer-reviewed and published in electronic proceedings (CD + website, with ISBN). Up to 2019 full refereed papers that were accepted were published in the Springer Lecture Notes in Geoinformation and Cartography, which is indexed in ISI Web of Science.