At the risk of seeming a jerk, I am going to suggest that you don't need to buy Joshua Harris' new book Humble Orthodoxy.
It's not that the message is bad. It's very good. It's both humble and orthodox!
Nor is it that the message is unneeded. Heaven knows there is a lot of prideful orthodoxy and humble heresy floating around out there! We need help finding balance.
But I just can't justify telling you to spend $9 to buy this book while John Newton's 200 year old letter "On Controversy" is available for free online. His letter covers Josh's topic more succinctly, more beautifully, and more convictingly. If you're looking for something longer to read about holding knowledge with humility, check out chapters 12 and 13 of John Piper's Think (also available for free).
I received a free copy of Humble Orthodoxy from Waterbrook Multnomah in exchange for writing a review. My review was not required to be positive. If you will rate my review below, it will help me get more books to review.