Widow

Contrast in design can be accomplished by placing two opposite colours adjacent to one another, creating a focal point within the design that dominates the composition.

PPI stands for Point Per Inch. PPI is the number of dots per inch in a printer's resolution or the number of pixels per inch in a monitor's screen resolution. The more PPI, the higher your image quality will be as it becomes sharper and clearer. The lower your PPI, the lower your image quality will be, and the more likely you'll see individual pixels in an image.

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".

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.

A brief snippet taken from the text of an article.

A UX design technique in which you divide your users into groups, show them cards with different names for unrelated objects and ask them to categorise them.

The typographic term for the dot above the letters 'i' and 'j'.

A quick and rough sketch of what you are about to work on. Good for getting the ideas out of your head and onto the page while you're still in that creative phase.

The measure of how easily light passes through a material. It is a quantitative characteristic that can be represented as a number within the range of [0, 1], and in some cases [0%,100%], with lower numbers indicating higher transparency.

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.