Graphic policy is consistent across the entire digital book
The graphic policy must allow to translate the structure of the work : the reader must be able to repeat himself in the progress of the plot, the hitherto of information, etc.
Objectives
Allow homogeneity and continuity in reading and navigation.
Implementation
Use a style(s) that allows a consistent layout of the text and/or content content.
Ensure that the fonts embedded in the digital book are readable by all audiences.
Control
The control takes place at the checking of the page display in different environments (i. e. reader software).