The author himself states that he is writing to people with doubts rather than people who refuse to believe. He rightly concludes that people who refuse to believe will not be convinced anyway. This is a good summary of the evidence for the truth of Christianity. Of course, in such a brief booklet, one cannot cover all of the pertinent issues, nor can one treat each issue with a great deal of depth. Still, as an evangelistic tool, this is very useful. The editors offer a brief bibliography at the end for those who might want to go deeper.