Chapters 5 and 6 were, for me, a lot of repetition (Pardon the pun) from many other articles and lectures that I've heard, but it was also quite interesting to read about because it is so much in human nature to do these things unconciously without having to think about it. I apprecated seeing the examples that the book provided about parallelism and I particularly enjoyed the example of depicting the 3D cubes as a series of numbers that essentially make up that cube in the opposing panel. The Examples helped in defining what you could use parallelism for and how to approach design by using it. Chapter 6 spoke mostly on repitition and was like chapter 5. Repetition is a very helpful tool to use in design as it makes it easier for us to compare things by basing it off of objects that look similar to each other. Most of the examples provided in the chapter were things that would be common illustrations in instructional guides, which made sense. You never realize how much repitition is happening in an image until you look at it carefully and take notice of it. For the most part your brain does the work without you having to notice. As designers it is especially important to notice it and use it to our advantage.