Church Essentials: What Is a Healthy Church? by Mark Dever is a 6-session Bible study for adults that helps our congregation understand the essential marks of a healthy church. What does it mean to be a healthy church? Church Essentials provides a framework and description of the characteristics to be incorporated into the life of a church. Whether you're a church leader or an involved member of your congregation, you can help cultivate these elements in your church, bringing it new life and health for God's glory.  Cost of book is $10.