The word photograph was coined 1839 by Sir John Herschel. It is based on the Greek word phos meaning light and graphê, meaning drawing, in other words, "drawing with light. Photography refers to the process or practice of creating a photograph, which is an image produced by the action of light on a light-sensitive material, usually captured by a camera. The camera uses a lens to focus an object's visible wavelenghts into a reproduction on a light-sensitive surface.
When speaking of photogrpahy it is often divided into two categories, non-digital and digital. Non-digital photographs are produced using a two-step chemical process. A light sensitive film captures a negative image (colors are inverted) from which a positive image can be made by transferring the negative onto a paper whereas a digital photo is captured and created directly in the camera, which later on can be printed in a variety of ways.
One example of contemporary photography is how Astrid Kruse Jensen works with an old Polaroid camera. She captures an image with the camera, creating a non-digital photography which is later on printed in an edition.