This was a really solid, useful, and practical book for both Protestants and Catholics alike (atheists as well, but I'm not sure they would want to read this). The fundamental point of this book is that if you're going to make an argument, it has to be done with reason and logic otherwise it's not convincing. For me, my favorite parts of the book were at the end of each chapter when Horn demonstrates how Catholics specifically can also argue like atheists and how to avoid these bad arguments. Horn is a very easy to read author as well and keeps things simple and concise, so I think pretty much anyone could pick this up and understand the points he makes.