Super-handy primer on Edge Poles

I don’t want to be too harsh on the well-meaning author of said blog post, but:

Although there are a few useful tips in that article, there are also some questionable terms (Edge Poles, N-Poles, E-Poles) and statements (about 3-sided poles: “This kind of poles is far less common…(than 5-sided poles), And : “..,poles are inevitable and required for proper topology.”)

The Default Cube consists of only 3-sided poles and:

if a manifold Object has one hole for instance, it can be made without any poles. Like in these two examples: