In any case I believe that Darwin makes a strong case for evolution being the cause of speciation for some species. If you're a creationist it will certainly force you to think. He exposes the lack of evidence for the evolution of cellular machinary and also challenges the capability of a theory based on random mutations to create complexity. Hugh harmonizes science and Genesis and also puts forth powerful new scientific evidence militating against the theory of evolution. The author puts forth a survey of information that seems to contradict the theory of evolution.
Hank discusses some of the problems with the theory of evolution at the laymen's level.
Compared to his other books such as Counterfeit Revival and Christianity in Crisis this one isn't as good. His general argumentation is a tad weak and lacks good scientific references. Denton's book examines the anthropic principle from the perspective of biology. He looks at the 'design' of biological life and finds it remarkable. He does not subscribe to the theory of human evolution and explains why.