Photography blends science with art. The photographer is the artist who engraves his creation with light and shade. Science has gifted the artist a technically advanced digital camera for him to captivate life with it. But he must know to decipher the codes of light. There are various types of lighting, the photographer can employ. The most common is the Directional lighting provided by flash, tungsten or several sources and can be used from the front, back or side.