Photography is the art, science, and practice of capturing images using light, either electronically by means of an image sensor or chemically by means of a light-sensitive material such as photographic film. The word comes from the Greek words 'photos' (meaning 'light') and 'graphé' (meaning 'drawing' or 'writing'), so it literally means 'drawing with light'.
In summary, photography is both a technical process and an artistic pursuit that allows individuals to create visual representations of the world around them using light.