content: I believe that this book is preety cheap.When I bought it I was so enthusiastic to learn math, exept for the procrastinations intervening with the main plot, which I consider a very constant, consistent, and reliable flow of information; explaining very deltailed, which formula you need to apply in which situation. Despite the statements which I have claimed about the quality of the book "Cheap", I still believe it passes my test by a mile, and it's explanations are extraordinary, namely for beginners. You can't even start to anticipate how this book altered my math grade. Instead of arbitrarily electing some sequence for the formulae, he invents his own effective process. I recommend this book to all the folks, who have a B,A. So that they can progress and have an A+ :)For the jungens, with C's they would presumably not understand the context.