Didn't finish this, but got what I wanted out of it, which was a better understanding of the types of mathematical models economists use to understand business cycles, growth, employment, etc. The book moves very quickly, but is clearly written for those with a background that includes calculus. Mostly comprehensible without a strong econ background.
excellent book for anyone who took intermediate macroeconomics and wants to broaden his knowledge in the field. It starts of by explaining growth theories then moves in to short run fluctuations (random walk...real business cycle...the permanent income hypothesis...) but i wouldn't advise this book for someone with no prerequisite knowledge about the subject.