How well or poorly something can be read.
A selector that can be applied to any HTML element. Classes should be used when designing for multiple instances. For example, if you want all <h1> tags in the website to look blue, then you could use the class="blue-text" attribute.
An organised arrangement of elements used for a particular purpose, such as to create striking visual effects or to convey information effectively. Good composition is achieved through different methods, such as placing figures or objects in a scene, revising and simplifying lines and shapes that make up a figure, and arranging multiple figures or objects into meaningful relationships.
The principle of both sides of an object having a sense of symmetry. It ensures that the weight and visual mass are distributed evenly on both sides of a surface. Balance is more important than symmetry because people don't often notice when something is asymmetrical, but they will always see if something is unbalanced.
A logo, symbol, design, or pattern used to promote and distinguish one's brand or company from others.
A graphic element that has a definite length and direction. Examples of vectors would be straight lines, edges, or curves.
The name, logo, and other identifying information at the top of a newspaper or magazine publication.
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.
A system of columns and rows designers use to create layouts. It's used in graphic design and web development to align elements for easy use on the page. Grids are a key part of design because they help you create balance, rhythm, proportion and hierarchy in your layout.
A digital file created in Adobe's illustration and photo manipulation software Photoshop. PSD files are used to edit images, create graphics, art, icons, images, among a plethora of other things.
A selector that can be applied to any HTML element. ID should be used when designing for a single instance, such as using the id="main" attribute on an <h1> tag.