Lefties only golf tip: I think for a lot of beginners and improvers the most common bad shot they might be hitting is going to be classed as a top or a thin shot. Basically a shot where the club would hit above the equator of the golf ball causing a ball that scoops out very low across the floor or even nose dives into the floor.
Problem of not Getting the Ball Up in the Air, Left Handed Golf (Video)