For anyone who's interested in learning more about Nim, here is Andreas Rumpf (the creator of Nim)'s talk at the OSCON 2015 conference: https://www.youtube.com/watch?v=4rJEBs_Nnaw ; and here's a longer, more-technical talk at the first Nim Workshop in November 2015: https://www.youtube.com/watch?v=zb3Sqs7lNJo

Here's the official Nim tutorial: http://nim-lang.org/docs/tut1.html

And here is the very approachable "Nim by Example", which offers a series of short, simple lessons about the main Nim features: https://nim-by-example.github.io/