Nothing is more effective and strong in communication and information transferring than a picture or a photo, that will spark various emotion and interpretation within the observers perspective and comprehension.
A picture or photos is a tool where anyone can use for their own purpose in their own self intention or bigger purpose in their direction and goal regardless it is for good or bad intention.
Compare to words, the intensity of the information are greater and with a smart phone size of display, anyone with or without proper education can understand or relate to the graphical information and create more emotional respond such as happiness, sadness, anger, laughter, etc.
Historically, there are many photos or picture that change the world especially those that published in the mass media such as the newspaper, video reel and now the internet. Many powerful regime has been brought down just by a simple image that unlike the old days, cannot be ignored or contained as they please.
That is why, a good picture is not dictated by experienced and equipment of the person but the ability to be aware and prepared for its surrounding and the ability to predict and be ahead in few seconds of any events or incident.
But, that is not enough because some of the best picture depicted in a very simple and subtle way where it is unexpected by the person who created it until time catch up with the information as it was intended to be.