Understanding my own faith: a desire which many people have. But at the same time a lot of Christians are not able to explain their faith because there is a lack of understanding. The Heidelberg catechism from 1563 was relevant for a lot of Christians in earlier times, but today it seems to have lost its significance. Georg Plasger combines both things: The understanding of faith for people of the 21st Century with the help of the Catechism of the 16th Century. The Catechism itself is constructed in dialogue – as well is the book. Plasger reflects basic questions and issues of Christian faith in fourteen chapters. He thereby shows that the Heidelberg Catechism is helpful to understanding ones faith. Questions like »How can we really speak of God? « and »Is man bad? « as well as key issues (including creation, Jesus Christ, Church, Holy Spirit, sacraments, hope and prayer) are considered. The result is a modern doctrine of faith.