Modular Design is a technique where everything is built using a block grid pattern. It is not a concept that is only for graphic designers. Everything from architecture to interior design to the way computers or even cars are built can be modular in nature. Modular Design takes some thought on the front end of projects but really is just a grid-based design system that works like any other grid. It works for any type of project or style. And it will help you design with organization and harmony.