WHY DO WE (designers) USE A GRID?

A grid is the begining skill of any designer.  Way back in the day, when printers, computers and typewrites, had not yet been invented, plain and simple grids helped designers arrange and proportionalize handwritten text onto pages.

Grids are a basic way of orgainizing elements visually; helping us to understand how to create things so they flow harmoniously and communicate the message across with ease. 

"An effective grid is not a rigid formula but a flexible and resilient structure, a skeleton that moves in concert with the muscular mass of information."

Ellen Lupton

Thinking with Type

Sources:

WikiGrid

MarkBoulton

Image/Example Sources:

Design

Grid-based design