The author goes through several worldviews — Christian Theism, Deism, Naturalism, Nihilism, Existentialism, Eastern Pantheistic Monism, New Age and Postmodernism — and shows how they answer seven basic questions:
1. What is prime reality — the really real?
2. What is the nature of external reality, that is, the world around us?
3. What is a human being?
4. What happens to a person at death?
5. Why is it possible to know anything at all?
6. How do we know what is right and wrong?
7. What is the meaning of human history?

Sire shows how each worldview developed from previous worldviews until we’ve reached our current situation — where each person basically creates his own worldview based on what works for him (postmodernism). Then he shows how there are really only two — God or not God — and how any worldview that doesn’t start with the God of the Bible eventually contradicts itself.

I read this book for work on the recommendation of Greg Carlson, for a high-school elective on worldview. It was intellectually challenging, but completely understandable and interesting. I gave it a 9.