The use of imagery in preparing for a task is well documented. Sports training, in particular, is one area in which imagery has been used very successfully. In this case the sport is golf, and the task at hand is putting. On average, putting accounts for the highest percentage of shots with any single club in a round of golf. This implies that golfers should focus on putting training to better their scores. This thesis is about designing an object, a putting trainer, which can aid the process of imagery by providing more information to the user. / Master of Science