The topics of church planting and church development are more relevant than ever. Winfried Noack explains the theological and structural foundations of modern Christian church work, highlights the special role of the pastor, and emphasizes the importance of each individual believer for the community. Illustrative discussions on practical missionary work are complemented by numerous suggestions for designing worship services, home groups, and offerings for various target groups. It becomes clear that networking within a church is just as important for its fruitful work as maintaining vibrant connections to the surrounding society.