Storyboards are graphic organizers such as a series of illustrations or images displayed in sequence for the purpose of pre-visualizing a motion picture, animation, motion graphic or interactive media sequence, including website interactivity.
The storyboarding process, in the form it is known today, was developed at the Walt Disney Studio during the early 1930s, after several years of similar processes being in use at Walt Disney and other animation studios.
The storyboard and script methods should be used in conjunction with one another. Creating a storyboard allows you to refine and examine the overall story-line. Once completed turn the storyboard in to a script. The final script will provide the detail required for the actual shooting. It will also allow the talent to view and rehearse their lines.
Storyboards for films are created in a multiple step process.-- They can be created by hand drawing or digitally on the computer.

If drawing by hand, the first step is to create or download a storyboard template. These look much like a blank comic strip, with space for comments and dialogue. Then sketch a "thumbnail" storyboard. Some directors sketch thumbnails directly in the script margins. These storyboards get their name because they are rough sketches not bigger than a thumbnail. For some motion pictures, thumbnail storyboards are sufficient.