A grid system is a framework used in design and layout that organizes content into rows and columns. This structure helps create a balanced and visually appealing arrangement, making it easier for viewers to navigate and understand the information presented. Grid systems are commonly used in various fields, including graphic design, web design, and architecture. In graphic design, a grid system can guide the placement of text, images, and other elements, ensuring consistency and alignment. Popular grid systems include the Bootstrap grid for web development and the Golden Ratio grid in art and design, both of which help achieve harmony and proportion in layouts.