Written in 1728, this book influenced the lives of Christians like John Wesley and William Wilberforce. This is a challenging and convicting book, but I consider it a must read. It will likely change the way you look at your entire life.
One might think I was some kind of liberal Christian based on the recommendations so far, but I don't see it that way! I find Dallas Willard to do an amazing job describing a personal relationship with Jesus. This book (among several others) was a great read for me.
I've come to the conclusion that the pursuit of money is one of the things destroying our family culture. Not even always in the way you might think about it. Rory Groves does a great job summarizing the damage done by the industrial revolution and then proceeds to rank various historically stable trades. Essential!
I tend to avoid Christian living books published in the last decade, but this one kept popping up in my feed. I've read a lot of book on Biblical Masculinity, but this one stood out. The section on identity and sonship alone is worth the read, but there's tons of great info here.