Core elements
Grid
Modular composition
Positioning for all elements
Positioning and content design (logo, graphics, text) - especially for A4 formats, but also for any other (keeping the correct proportional ratio) - will always be determined on a reference grid based on the area used for the logo construction and previously referred to as the 'base unit'.
Portrait
A quarter of the grid in landscape A4 format.
Example
Landscape
A quarter of the grid in portrait A4 format.

Example