words do not always allow us to communicate directly without any second-guessing as there are instances where there are underlying meanings to certain words. :)

Pictures are more powerful than mere words as a picture can bring out the intended purpose of the photographer or news in the most straight forward and direct way.

For instance, the advertising photographs of the tourism board of a country can immediately bring out the beauty of the places of interest rather than what words could. Also, newspapers had been reporting a lot about the earthquake that struck Haiti. The description and reports of the reporters tell us the bad situation Haiti is in now and how much the population was affected by the disaster. However pictures of collapsed infrastructures, dead bodies and the adverse living conditions of the people living there clearly show us that help is needed in Haiti and we all should do something to lessen there sufferings.

Therfore, pictures can provide information in the most direct way, hence powerful.