[D3 in Depth]:
>D3 in Depth aims to bridge the gap between introductory tutorials/books and the official documentation.
I have found D3 extremely useful for creating dynamic plots on dashboard style websites for monitoring data pipelines. This looks an excellent resource for learning it.
[D3 in Depth]: http://d3indepth.com "D3 in Depth"
[FlowingData]: http://flowingdata.com/2016/08/29/d3-in-depth/ "D3 in Depth"