This unique book offers an in-depth and easily-readable study of the theology of creation from a Catholic perspective. It is brief and geared toward lay persons who desire a deeper knowledge of this aspect of their faith. The author emphasizes the importance of recognizing God as the creator of the universe, and the profound implications which this recognition has for the Christian life. The work describes the divine work of creation in continuity with the new creation brought about through Jesus Christ and the gift of the Holy Spirit. Topics covered include an analysis of Creation in the Old and New Testament, an overview of Christian thought on creation from the Fathers of the Church to the modern period, and a systematic analysis of what creation means. Chapters are also dedicated to the human person, angels, the role of science and technology, sin, and divine providence. THIS SHORT BOOK HAS BEEN WRITTEN to offer an introduction to some of the key ideas of the theology of creation. It is intended as a synthesis of some important ideas to help laypersons who cannot be fully dedicated to theology and yet who would like to study this subject in a serious way. Because of this aim, each chapter is brief. Certainly, many of the ideas described in the following pages can be examined at more length, perhaps making use of the bibliography which has been cited, as well as other works. Certain topics of relevance are not dealt with. In any case, our hope is that these pages can be an opportunity to become more familiar with- or to review once more-the rich Christian doctrine regarding creation, which continues to be of such vital importance for the Church and society.