dragafem said:
I wish I could understand those graphs... all I see is line.one connects the dots like this the other like that :/
Lot of free info on the net about charting, e.g at stockcharts.com, Wikipedia, and just by googling terms. I suspect most are autodidacts like myself. Sometimes a trendline break is significant, sometimes its just another blip on the road to nowhere. Commentators sometime try to tidy things up by calling a break that goes nowhere a 'false break' - makes things seem less random.
A trend is an imaginary line joining the peaks or the 'troughs' of a price development over time. Price should touch the trendline 3 times for the line to be valid but this is a loose rule. It is quite strange how often prices obey these trendlines. A downtrend line joins the peaks of price, an uptrend line joins the troughs (lows) of price. When a price occurs outside the trendline you might see significance in that - why has the rate of ascent or descent of the price been broken?
It's not science, it's more tea-leaves and intuition and an effort to find form and make predictions out of chaos. Irresistible.
E.g. Google "charting" then the term:
Trend line, uptrend, downtrend, trend channel
continuation pattern, topping pattern, bottoming pattern