This document provides an overview of the history and types of photography. It discusses how photography involves capturing images using light or electromagnetic radiation. The earliest known photograph was taken in 1826 by Joseph Niepce. Key developments included the invention of the first camera by Alexander Wolcott in 1840 and the introduction of flexible roll film by George Eastman in 1885. The document also describes different genres of photography like portrait, landscape, commercial photography and more. It provides details on the techniques and purposes of various photography types.