PHOTOJOURNALISM: journalism that presents a story primarily through the use of pictures.
Objective & accurate depiction of events
Often combined with other elements such as words. Photojournalists often work with a writer.
Photojournalism encounters a lot of ethical dilemmas in terms of photo manipulation (Enhancing vs distorting), privacy, graphic and shocking images.
Doing some research on photojournalism I found a photo essay by a photographer called Eugene Richards. The book is called 'Cocaine True, Cocaine Blue' and explores the drug infestation in housing projects in the states.
You can view the gallery on Eugene's website at;