As the need to clearly define distinctions between evolutionary scientific positions on 'origins' (man, the Earth and the Universe) and the biblical scientific position (young-earth Creationism) become more necessary, books by experts from all perspectives become more prevalent. In The Bible, Rocks and Time, two Ph. D. level geologists examine the evidence from the view of secular science to make their determination of a very old earth, culminating in an attack on young-earth creationism. The authors' presentation is broad enough to fit many parts of the old-earth spectrum of origins beliefs (theistic evolution, Intelligent Design, progressive creationism, etc.).