This ebooklet presents the Christian faith in a series of 73 concise articles. Each article expresses, in a nutshell, the core ideas about a wide range of topics as they are found in the Catholic tradition. The aim is to give food for thought, clear and accurate explanations and so to provide a mini-catechism of the most important elements of the Christian faith. While the richness and beauty of faith cannot be expressed in mere words, the right words can encourage us to explore it more deeply.