This question often comes up in the forum - how to get started with Node-RED. Use this thread to collect useful videos, tutorials, blogs, etc.
Videos:
- Introduction to Node-RED series from the core devs
- Opto 22, Node-RED Tutorials
- YouTube search for "Node-RED"
- UIBUILDER for Node-RED video series
Written Resources:
- Node-RED Documentation
- Node-RED Cookbook
- Node-RED uses the Node.js platform which is based on JavaScript