I have some great textbooks on storyboarding, and it is really an essential part to the industry.
However Im always trying to find a balance between scripting pre-planned shots and coming up with them spontaneously while on set.
Usually for each shot I take a piece of paper and glue a storyboard onto it with a general description of the action/script that is supposed to occur during that shot along with any other notes.
I put them all into a notebook sequentially, and its a great way to make sure I dont forget to take any footage that is necessary to assemble a good scene.
Also, since I dislike doing camerawork myself, its a great way of letting my camera operator know exactly what I need.
It also helps me not waste too much time on set trying to come up with shots for the first time. However, if I come up with a different way to film a shot than is planned in my storyboard (which usually happens) I will also do that, assuming I have enough time. It allows me the option to be creative and spontaneous, but without as much risk of wasting time.
"Important dialog is only in Hollywood films" - Kyle Phillip Johnson