Arcadia is the model-based systems engineering method at the heart of the open-source Capella modeling tool. Promoting a viewpoint-driven approach (as described in ISO/IEC 42010), it emphasizes a clear distinction between need and solution to support enterprise-wide collaboration and co-engineering. To help systems engineers master Arcadia, the community continually produces resources in various formats (books, web pages, articles, videos, datasheets, etc.) and for different purposes, ranging from introductions to very precise topics.