Directly related to the Fibonacci series, quotients 1/1,  2/1, 3/2, 5/3, 8/5, 13/8, 21/13..... converge progressively into PHI: 1.618. Also known as the Golden Ratio, PHI is used as the backbone of this hand-drawn artwork series where I try to show some of the harmony and perfection of this number, while understanding, of course, natural human limitations.