The back reads; We are living in a time when you can believe anything as long as you do not claim it to be true. In the name of "tolerance," our postmodern culture embraces everything from Eastern mysticism to New Age spirituality. But as Zacharias points out, such unquestioning acceptance of all things spiritual is absurd. All religions, plainly and simply, cannot be true. (That's the first paragraph) Each chapter he takes a different question and talks about the claim that Jesus made and contrasts it with the founders of other world religions. He also talks about how he came to believe the Christian faith. I hope that helps!