Breaks down the elements of epidemiologic research design nicely, but often skims certain basic elements and details since it's geared towards an advanced epi audience. It also stops in the middle of explanation at times when it gets too advanced and then refers you to a later chapter. So there is some redundancy among chapters that could throw you off in your reading. I wasn't so into the constant reference to the Dutch Famine study, but that's one of Susser's famous studies so it makes sense. The charts tended to be dry, and in 2009 it would be nice to have color in a textbook. Otherwise, overall a good accompaniment to an advanced Epi class.