A set of symbols or "characters" including letters, numbers and various other symbols.
All available space (line-height) between two consecutive lines of text; this measurement should be adjusted for either ascenders or descenders. In hand typesetting, leading referred to thin strips of lead inserted by hand between lines of type in the composing stick to increase vertical distance.
A type of text used as filler or placeholder text. Since the dawn of time, it has been around and is sometimes erroneously referred to as "a nonsense sentence used by printers who have run out of typesetting space".
Colours that have a relation in their hue. A colour wheel can be used to help identify analogous colours. Analogous colours are typically found next to each other on the colour wheel.
A colour that appears to be pure and lacks any lightness (or tone) or saturation.
In handwriting and calligraphy, ball terminals are the end of a stroke that resembles a ball. They are also used in some typefaces like cursive or old-style typefaces.
A well-known cognitive psychologist's principle that says that the time it takes to make a decision varies logarithmically according to the number of choices. As more options are presented, more decision time is required due to the mental work of comparing and contrasting each potential option.
The ratio of a rectangle's width to its height. It is measured by dividing the shorter side length, here "w" or width, by the longer side length, "h" or height. The aspect ratio may be given as either a fraction or as a decimal.
The portion of a letter such as y, p, q or j that hangs below the baseline of the text.
A measure of the height of a set of text on an element.
Layout is a defining characteristic of design. It dictates the positioning of content and design elements. Layouts can range from the simple, such as a four- or two-column layout, to more complex designs like grids with multiple hierarchy levels.