Mehwish Alam & Arne Broring 
Semantic Web: ESWC 2021 Satellite Events 
Virtual Event, June 6-10, 2021, Revised Selected Papers

This book constitutes the proceedings of the satellite events held at the 18th Extended Semantic Web Conference, ESWC 2021, in June 2021. The conference was held online, due to the COVID-19 pandemic.During ESWC 2021, the following six workshops took place: 1) the Second International Workshop on Deep Learning meets Ontologies and Natural Language Processing (Deep Onto NLP 2021)2) the Second International Workshop on Semantic Digital Twins (Se Di T 2021)3) the Second International Workshop on Knowledge Graph Construction (KGC 2021)5) the 6th International Workshop on e Xplainable SENTIment Mining and Emotio N de Tection (X-SENTIMENT 2021)6) the 4th International Workshop on Geospatial Linked Data (Geo LD 2021).