Rules for Drawing Trendlines

[NQurious]

The most obvious horizontal trendlines are those at the (previous bars) Open, High, Low, and Close.

I have found the most useful trend lines to be precisely these. Cut my teeth trading using trend lines. Use them very little now. Or perhaps I should say I see them without having to draw them?

 

[NQurious]

Unfortunately, there are no concrete rules when it comes to drawing trendlines. Each trader will draw them differently. It is up to the trader to define what is a trendline and how important each one is.

Sort of like gaps, right B1S2?