It is sometimes challenging for people to mentally visualise things, this is the reason why storyboard takes all its meaning, as it shows intended filmed images, winning clarity in coordination.
Storyboard being mainly made of images, it represents a more precise way to communicate a story, compare with telling it with words. Furthermore it allows to directly provide information about chosen angles of shooting, colours of scenes, aesthetic of sequences, etc.
Efficient Production & Post-Production
As from the storyboard, there is series of agreed scenes to shoot, then the production will be quicker, together with post-production stage, as what has been agreed on storyboard will be be straightly filmed and edited.