Recommended. This book is definitely practical, but the practicalities are based on the gospel of peace. That is, it's threologically-informed practice.
The basic argument is that, since God reconciles people to himself through his Son, so too should relational reconciliation be part of any pastor's job description. Furhter, the means of reconciliation are the same as the gospel itself: honesty about sin (firstly in one self), repentance & a request for forgiveness.
The author, Alfred Poirer, relies a lot on the work of Peacemakers Ministry. The reason for this becomes clear when we find the Ken Sande - the Peacemakers' man - is/was an elder in the Poirer's church. And Poirer chairs the board of Peacemaker Ministries. So, if you don't want to read specifically about being a peacermaking pastor, I'd recommend Sande's book 'The Peace Maker'.