In golf putting, ‘reading the green’ is a difficult task. A study of university golfers completing 3-m putts found that they were significantly worse on severely breaking (11% success) and moderately breaking putts (41% success) than on flat putts (51% success) (Wilson & Pearcy, 2009). This chapter focusses on the perceptual-cognitive phase of putting preparation, the period in which golfers make decisions about the optimal path from the ball position to the hole, taking into consideration the slope, break, and green contours (Campbell & Moran, 2014). In this phase, golfers attempt to determine the correct aim line and required force before taking up their putting stance in preparation for the putting stroke (van Lier et al., 2011).