Mark Bennett explains, with Skittles (again?) and sine waves on the palms of your hands (?), about polarized light — what it is, how it forms, and what to do about it. Then he does something about it as he reviews the Breakthrough Photography X4 CPL filter. Peter Ensenberger returns to explain the benefits of simplicity in composition, then Mark shares a tip for achieving said simplicity, and quotes Pete Turner on that, and a couple other, topics. It's good stuff, Maynard!