Ryken begins the book with a wonderfully concise and accurate analysis of post-modernism, in particular highlighting it's twin idols - relativism and narcissism. He then analyses each of his 8 marks of church, indicating how they can be corrupted by these idols, and calling for a return to its true nature.
This book really stands out because it is unwilling to wallow in lament of the present age, as some are want to do, nor to hark back to the past, but to "live in the present, learn from the past, and anticipate the future, while always looking to the Bible."
Perhaps my own negative is that, at times, it feels that the author is leaning more towards a conservative viewpoint and a "if we just go back to doing what we've always done" mentality, rather than offering a more rigorous critique of where the previous generation had succumbed to it's culture (modernism).
