1. What is the rule of thirds? The rule of thirds is the composition of your shot, the placement of the subject or point of interest sits in the frame. 2. Why is it called the rule of thirds? You use a grid divided by 3 vertical lines and 3 horizontal lines guide you where to put the point of interest in the frame. 3. How do you apply the rule of thirds? Placing the subject on the sweet spot draws attention to the point of interest. 4. What are the sweet spots? The sweet spots are the 4 points where the lines meet. Lining up the background with the sweet spots gives your frame an engaging layout.