TIM BROWN in A LIST APART: A MODULAR SCALE is a sequence of numbers that relate to one another in a meaningful way. Using the golden ratio, for example, we can produce values for a modular scale by multiplying by 1.618 to arrive at the next highest number, or dividing by 1.618 to arrive at the next number down.
By using culturally relevant, historically pleasing ratios to create modular scales and basing the measurements in our compositions on values from those scales, we can achieve a visual harmony not found in layouts that use arbitrary, conventional, or easily divisible numbers.
Read More Meaningful Typography at A List Apart, for people who make websites.
