A picture is worth a thousand words

Photography is used in many ways depending on the specific genre, and its importance varies by use, so this question is ambiguous and I can only give you an overview. Various genres of photography include portraiture, wedding, fashion, glamour, fine art, photojournalism, sports, wildlife, landscape, forensic, military, medical, underwater, travel, commercial, editorial, documentary, etc. So as you can see, there are so many answers to this question and I’ll just provide a few examples.