Sometimes a writer or another artist (such as an art director) will include basic layouts, called "breakdowns," to assist the penciller in scene composition. If no breakdowns are included, then it falls to the penciller to determine the layout of each page, including the number of panels, their shapes and their positions. Even when these visual details are indicated by a script, a penciller may feel when drawing the scene that there is a different way of composing the scene, and may disregard the script, usually following consultation with the editor and/or writer.