What is the main genre of photography?

Photography has a history of only 100 years since its birth. It has developed rapidly, and various styles and schools have appeared in all countries of the world. Among them, the most important one is painting photography, which originated in Britain in the middle of19th century and soon spread all over the world, becoming the earliest and most influential school in the history of photography. This school pursues painting effect in its creation, and its works range from composition layout to light and shade.