0, 1, 1, 2, 3, 5, 8, 13, 21, 34, …
Makes A Spiral
When you make squares with those widths, you get a nice spiral:
“ The grid system is an aid, not a guarantee.
It permits a number of possible uses and each
designer can look for a solution appropriate to his
personal style. But one must learn how to use the
grid; it is an art that requires practice. ”