The American Library Association awarded this book its annual award in the area of "Outstanding Religious Books" for its lucid presentation and engagement with the fundamental tenets of Darwinism. Dr. John Klotz was a well-known biologist who was passionate about helping the Church engage intelligently with the theories of evolution. Dr. Klotz sets forth the case against the theory that higher organisms developed from lower organisms, instead arguing for the view that while there is change, it is finite and takes place in a fixed and closed system.