I think 'nosepc's biggest problem is language. There are subtle differences in any two languages that can change the meaning or the expression of an idea. That being said, I also think that he is 'bouncing ideas' around to see what other people think, which everyone does to some extent.
From there, it gets complicated. How currents are displayed is one of those complications. In the above pictures, those currents are 'simplified' to a huge extent for clarity. They aren't just on 'one side' of the conductor, they are on 'both sides'. (That's an over-simplification but it does give an idea of what/where a problem may be.) How those 'opposing' currents react, or displaying how they react makes for a very interesting 'simple' picture, which means that you either have a large number of pictures for one simple idea, or you have to take for granted that people understand what you are trying to show. Good luck with that! Or, RTFM...
- 'Doc
And for 'nosepc', RTFM means Read The "Furnished" Manual. "Furnished" isn't exactly what that 'F' means, but it's the polite way of saying it.