Layout systems are frameworks used in design and architecture to organize visual elements on a page or screen. They help ensure that content is presented in a clear and aesthetically pleasing manner. Common layout systems include grid systems, which divide space into columns and rows, and flexbox, which allows for flexible arrangements of items. These systems are essential for creating user-friendly interfaces in web design and print media. By providing structure, layout systems enhance readability and guide the viewer's eye, making it easier to navigate information. Designers often choose a layout system based on the specific needs of a project.