I recommend the online book "Spatial Linked Data Infrastructures" - https://linked-sdi.com/ - by @luis_de_sousa. It's an excellent resource for understanding Linked Data and the Semantic Web. Even if geospatial topics aren't your focus, you'll find the concepts clearly explained. A must-read for anyone diving into these technologies! #foss4g#linkeddata#semanticweb#geospatial