The distance between the baseline and the mean line of lowercase letters in a typeface. Nearby descenders (such as j) and ascenders (such as q) usually extend slightly below or above this height.
The part of a letter, usually a vertical line, that rise above the x-height.
A statistical method in which two variants of the same activity are compared against each other (typically with several variants), one at a time, and the most effective variant is selected.
A type of user interface design carefully crafted to trick people into doing things they might not want to do.
A psychological principle which predicts that when multiple homogeneous stimuli are presented, the stimulus which differs from the rest is most likely to be remembered. In other words, people tend to remember items in isolation more than those of a similar nature or objects in clusters. This phenomenon has been applied in designing websites and software with various levels of success.
The width and height of a document, after having been cut down to size from a larger sheet.
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".
A way of expressing colours on digital media. To specify a hex code, you need to consider the three primary colours: red, green and blue. The hex code is always six characters long and looks like this: #RRGGBB and their values range from 00 to FF.
An abbreviation for Portable Document Format. The PDF format was originally developed to share documents between different operating systems in the late 1980s. Any text document, image or page layout can be saved as a PDF file that includes all of the font information needed to display it without losing quality.
The art of decorative writing practised by many different people in many different cultures. Calligraphy is sometimes used to add a personal touch to wedding invitations, special event invitations, and other projects.
A greater typographic weight than the standard typeface, often used to highlight text that the writer wants to emphasise or denote sections, headlines or quotes in printed material.
Bold type is a little heavier than the average type because of its higher contrast, making it more readable. The opposite of bold type is light type, also known as regular or book.