Uhh, I don't want to sound negative but I have to post this reply.
For a Christ's sake don't waste your money and time on this bunch of worthless papers! I can't decide which part is worse, Quant or Verbal. Although both are poorly written and even worse explained I firmly believe that, if you are working on your verbal skills using this garbage, your score is likely to go down. Kaplans readings, arguments and sentences are so poorly written and so far from real test questions that you are probably going to adopt some creepy logic of Kaplans instructors, which ultimately leeds to drop in your verbal score.
Math section is not so "dangerous" as verbal but still is one of the poorest crapy things I've ever seen. There is no any kind of methodology or some structured approach, instead they will give you a bunch of questions that were considered hard probably in the 1970's but now are a joke when compared to the real deal. But even that is not the end of the trouble. Quant questions are so poorly explained that I was sick when I first read one of explanations. Plain language, without any kind of try to establish some methodical or scientific approach. "Why A is bigger than B? Because it is, maaaan! You see, Earth is bigger than Moon, Sun is bigger than Earth... A is bigger than B! See? Right? OK, let's go further...".
Math section has no any kind of structure or organization, there are just examples clustered in some groups of 4 based on similarity of an issue. Questions are hard but that is just the entry level of hard q's seen on the real deal. For example, motion problems... They presented only one problem of two objects moving toward each other. Simple, basic problem with two planes fluying in the opposite directions at a constant speed. How long will take them to pass each other? Yeah, right, though one isn't it? That' the point of start for some serious test prep programs, but a peak of career for the Merry Andrew who write funny questions for Kaplan.
Although I agree with Gmatblackbelt who wrote that Kaplan was the only test prep program that even mentioned something about elipsis in the SC part of the Kaplan800, I don't think that one passage (also poorly written) is good enough reason to spend 27 bucks on this book. If you are a serious test taker stick to the serious programs, if you are a beginner then lurk throughout this forum and find some stuff to start with (I guess Princeton Review or something like that).