Misunderstanding... Grid Terms I Printed Out

Typography Questions...
9/1/08

Grid: A skeletal structure that does not bind. The structure helps to organize information and graphics in a logical, visually pleasing manner. This style of design helps to not bind a designer's perimeters but also help organize data and graphics.
http://wwwfac.worcester.edu/iad/design_grids.htm (simple 3x3 design grid)

margins: the areas around the internal grid structure. They come in lots of different styles depending on information, but help to fame the document.
Columns: vertical structures that interact with the horizontal rows. They also vary with content but are designed to locate information in an up and down format.
Grid modules: specific areas that text or graphics can be placed on a page. They help to logically frame information and create a dynamic, harmonious composition.
Flow lines: suggestive areas like margins, but on the interior of the document. These areas often separate modules and give a designer more areas of separation inside a composition and also organize the information in the comp.
Gutters: The area between two pages, including the right and left margins of two open pages. Basically, the area between two pages next to each other including the book binding.

A modular grid is a grid cut up into modules, or sections, that aid even further in the composition to help identify areas of possible text and graphics and to keep a composition more dynamic, depending on the information used.
X-height: area of main body of a lowercase letter of the letter x.
Baseline: most stable line for text, area where all the letters in text align at their bottom axis.
Cap height: distance from baseline to top of capital letter.
Points: a system to measure height of a letter and its leading.
Picas: based on points, twelve points equals one pica. More often than not used to measure column width.
Character Width: area of actual letter plus the space between it and the next letter. Helps to determine typefaces.
Line Weight: varying "thickness" of a letter. How the x-height competes with the width determines line weight. Line weight, when heavy, can develop into strong widths and bold text.
Proportion: tells the basic visual size and weight of type. Sometimes in comparison to other text typefaces.