Going out and trying to find examples of images, billboards or poster that try to convince you of an opinion was harder than I expected – most images nowadays are trying to sell you something not really an opinion.
It's very interesting paying attention to the reactions and thoughts that our minds have when seeing these image trying to convince us of ideas, something we usually do subconsciously. It highlights the point that not everything happens is obvious and observable.
I also found that although something is trying to convince me of one view, it can also not have the desired effect so it is important to try and understand all the effects your image can have and try to control that.
