Are there any tutorials on drawing/drawing up quality network diagrams?

Question

Design

By type of activity, you have to draw many different network diagrams: large and small, detailed and not very detailed. These can be just logical diagrams like "which city connects to which through which channels", or there can be diagrams indicating ports, links, networks between specific routers / switches.
But since I am not a designer at all, these diagrams do not always turn out to be aesthetic and easy to read. In this regard, the question arose: what can be read for self-education in this direction, what to look at?

Answer 1

In this regard, the question arose: what can be read for self-education in this direction, what to look at?

There is a section on Greg Ferro's blog.

Answer 2

If you really want quality, use the domestic GOST. For example, 21.406-88. If you bother in terms of handing over the network to Roskomnadzor, the designations should be from it.