The Learning Church series offers a range of short and accessible introductions on some of the key themes in Christian theology and discipleship.This book discusses the basic Christian belief that God has a purpose and plan for the World and that God calls us to work with God to bring that purpose and plan to fruition. In contemporary Christian thinking God's call is to discipleship and ministry. This book is designed to help readers grasp the theology of call and of vocation and to discern God's call to them.