I just finished reading "In His Steps" by Charles Sheldon. It was an amazing book. Inspiring and Convicting. I HIGHLY Recommend it!
You can check out a review HERE .
You can also read the book online HERE.
I think this author must have coined the phrase "What Would Jesus Do?". The book is written about a Pastor who challenges his church to spend a year making decisions and acting only after asking the question "What would Jesus Do?". This is a very old book, but it is very, very good. You will love it!