I have a great interest in early Christian writers. I read them because I think they had a greater grasp of the scriptures, interpreting them as the original writers wrote, moreso than the contemporary Christian writers today.
There was no ten steps on how to live a better life, have a better marriage, etc., it was straightforward theology, and there main focus was God and attributes, and Christ. Period.
One of the best books in Christendom is Pilgrim's Progress by John Bunyan. This allegory is the story of a man by the name of Christian who travels from the City of Destruction (earth) to the Celestial City(heaven). He carries a burden on his back which came after he read a book(the Bible).
The journey from the City of Destruction to the Celestial City is the plot of the book, which leads Christian to run into various characters such as Evangelist, Obstinate, Pliable, Help. Some of these characters aid in his journey and some test his faith. All the characters are appropriately named.
I first read this book in High School, and have used it as a point of reference for several years, planning to fully reread it again.
For anyone who is a Christian or who is wondering what and why we believe as we do, this is the book to read. It is a great piece of literature that has withstood time.