I have been working on what I hope is an easy to follow introduction to the nanoVNA. It's fairly basic and aimed at users who have probably used other test test equipment such as oscilloscope or maybe even a spectrum analyser, but are unsure why they might benefit from a VNA.
This is a work in progress and I will aim to take any feedback given here to improve the content.
Part 2 is in the works and I hope to have it uploaded this time next week.
HexAndFlex