It doesn’t matter if you’re a complete Beginner or have been using blender for years now, I’m pretty sure you can benefit from seeing this video 
I hope you like it, if so, consider giving me an ‘thumg up’ on youtube 
Thank you for the info. It is useful and I hope that you will eleborate on these in the future for absolute newbies like me. I wonder, that picture of those nodes, is it possible you upload them here? So I can copy it and see the results in Blender for myself while at the same time practising? I would really like that. Your voice sounds nice, although I believe it sometimes is a bit soft and then you talk louder etc.