The golden section is usually cited as the most successful geometrical construction that can produce a beautiful lay-out. As it is a geometrically derived form, it can be drawn with a setsquare and a compass. By adding the lengths of the long and short edges it is possible to arrive at the next measurement in the sequence to give a bigger rectangle of the same proportions (and in reverse). Adding two numbers to find the next in a series is also the basis of the number progression of the Fibonacci sequence, named after the Italian mathematician who first identified it in many natural forms. A combination of the golden section and Fibonacci sequence was often used to determine the overall proportion of the page.
