How to Do the "PLL" Rubik's Cube solution technique

This is a demonstration on how to use the PLL method to solve a Rubik's cube. The author informs that what people do before and after applying the PLL technique is very important. According to him, people usually tend to first align as many faces as they can, when they see a partial algorithm and then apply the PLL method, which is very time consuming. Instead, one should stop one step short of alignment, apply the Pll method and then align the faces completely. The author, however, points out that the nature of some algorithms is such that it is better to align them before, rather than after, the PLL step.