I have read books about Martin Luther but this one I just finished is exceptional. What he has done as researched the letters and table talks of Luther and have discovered his counseling care for souls.Although he  wrote these 500 years ago because he was a student of the Word discovering scriptural principles based on the work of Christ on the cross is grace-saturated  and gospel focused.

This must read book  for pastors and biblical counselors is 246 pages and published in 2017 by New Growth Press.