The Handbook for National Nodes has been designed to present the documentation supporting the communication and activities of OPERAS’ national nodes towards their national community. In addition to providing an overview of the structuring work carried out to define the links between the infrastructure, the nodes and the communities, the Handbook is also intended to be the entry point to the documents and tools that will support the action of the nodes. The Handbook must therefore be seen as a user guide intended to the national nodes, linking to the main strategic documents at their disposal and setting out how they can find and use them. Moreover, the Handbook for National Nodes is a living document that will be regularly updated with new tools and documentation developed by and for the OPERAS’ community.