Illustration refers to the visual representation of a concept, idea or story through the use of pictures, sketches or other visual elements. Illustrations are often used in books, magazines, newspapers, advertising and other media to complement or enhance the text.
Graphic design refers to the creation of visual communication through the use of typography, colour, form and images. It includes the design of logos, posters, packaging, promotional materials, websites and other visual media. Illustration can be used in graphic design projects as a visual element to convey a certain mood or message.
Web design refers to the design of websites to make them more user-friendly, appealing and functional. It includes the design of page layouts, navigation, colours and other visual elements. Illustrations can be used in web design projects to create visual interest, complement text content or as a graphical element in the user interface.
To summarise, illustration can be seen as a method of visual communication that can be used in various fields such as graphic design and web design to enhance the visual appeal and clarity of the message.