I read through this book very slowly in year 9 or 10 at high school. I think it's really challenging for a young Christian, especially one who has been brought up in a very sheltered Christian family, to see what people around the world in different times and places are doing with their faith. It can be easy to view your faith as a dormant object that you keep with you but never really use, whereas this book reminded me (without even saying it out loud) that God is powerful and our faith in Jesus is not in vain.