This chapter will provide you with an introduction to many sorts of flashes, each of which, depending on the shooting conditions, can be quite helpful in correcting for limited light. A concise explanation of each sort of flash will also be provided for your perusal. At the conclusion of this chapter, you will also be introduced to a supplementary lighting option that is quite intriguing, particularly for detail shooting. As an additional feature, a selection of photographs that illustrate the utilization of flash, including both its benefits and drawbacks, will be presented, in addition to a demonstration of the potential of taking photographs without the use of flash.