There is a lot of material out there that is invaluable for someone trying to come up to speed, so here are a few links that you might find useful or enjoyable;
 

The Electric Unicycle Forum

In our opinion, one of the most valuable sources of Electric Unicycle information - this is the place to go if you want to have all your questions answered or just to benefit from what has been learned before.

LINK: https://forum.electricunicycle.org/
 

The Fat Unicyclist's YouTube Channel

Perhaps not quite as valuable as the EUC forum, but we are planning to get as much (New Zealand) video content as possible up here, so you can see how PEV actually work at this end of the world.

LINK: https://www.youtube.com/channel/UCPJvIs5jiJn0_karpvvHeeA