A grid is a series of
vertical and horizontal lines that are used to subdivide a page vertically and
horizontally into margins, columns, inter-column spaces, lines of type and
spaces between blocks of type and images.
A grid is something
which is in a pattern of straight lines that cross over each other, forming
squares.
On maps the grid is
used to help you find a particular thing or place.
At its most basic, the
sizes of a grid’s component parts are determined by ease of reading and
handling.