A grid system is a rigid framework that is supposed to help graphic designers in the meaningful, logical and consistent organization of information on a page. It is an established tool that is used by print and web designers to create well-structured, balanced designs. Rudimentary versions of grid systems existed since the medieval times, but a group of Swiss graphic designers, mostly inspired in ideas from typographical literature started building a more rigid and coherent system for page layout. The core of these ideas were first presented by M ller-Brockmann who helped to spread the knowledge about the grids thorough the world. This volume provides guidelines and rules for the function and use for grid systems from 8 to 32 grid fields which can be used for the most varied of projects, the three-dimensional grid being treated as well. Exact directions for using all of the grid systems possibe presented are given to the user, showing examples of working correctly on a conceptual level.