The Phi Grid is a composition technique inspired by the Golden Ratio, a mathematical principle often observed in nature that creates a sense of balance and visual harmony. Similar to the Rule of Thirds, the Phi Grid divides the frame into horizontal and vertical lines, but these lines are slightly closer to the center, with the grid proportions reflecting the Golden Ratio (roughly 3/8ths on the top and bottom, and 2/8ths in the middle). This subtle shift allows for a more natural and aesthetically pleasing composition. Place the main subject and supporting elements at the intersection of two lines or along a line.