Typefaces belong to a larger system: a system of classification that organises typeface families by size, style and weight. Adrian Frutiger is a Swiss typeface designer, most well known for the typefaces Univers and Frutiger. In order to help designers understand how to use the different tyefaces within Univers he created the Frutiger grid, a system that still resonates today. The Frutiger grid uses a system of numbers to classify a typeface. The first number in the system refers to the character weight - two is the thinnest and nine is the thickest. The second number refers to the character width and whether roman or oblique - three is the widest or most expanded and nine is the most condensed. The Frutiger grid is a system of rules for creating good typography: for example, weights that are two numbers apart always combine well together as part of a design.