Introduced by Brad Frost in 2013, Atomic Design is an approach to designing interfaces by creating systems of components instead of pages. It involves designing small, standalone, reusable elements and combining them to create the whole. This enables rapid production of scalable and consistent interfaces that are easier to maintain.

In Atomic Design, there are five components of an interface:

1. Atoms:

   The smallest, most basic building blocks, that can’t be broken down (e.g. buttons, input fields, checkboxes, links). They can also be abstract (e.g. colours, fonts). Molecules: bonded atoms that function as a unit (e.g. an input field and button can combine to create a search box).
   
   

2. Molecules:

   Molecules can be simple or complex, built for reuse or one-off use.
   
   

3. Organisms:

   Organisms are groups of similar or different molecules (and possibly atoms) joined to form a distinct section of an interface (e.g. a page header can be formed from a logo, navigation and search box).
   
   

4. Templates:

   Templates are organisms combined together to form pages. They are client facing and begin to demonstrate the page layout and flow.
   
   

5. Pages:

   Pages are specific instances of templates. They test how the templates work with real content, enabling designers to go back to modify the molecules, organisms, and templates if required.