The norm of four artists is sometimes reduced to three if the penciller also inks his own work, usually being credited within the book as a penciller/inker.
He introduced the practice of regularly including a credit panel on the splash page of each story, naming not just the writer and penciller but also the inker and letterer.
Sometimes a writer or another artist (such as an art director) will include basic layouts, called breakdowns, to assist the penciller in scene composition.
The division between penciller and inker described here is most frequently found where the penciler and inker are hired independently of each other by the publisher.
