Since the Mass is such an important part of Catholic life and worship this author attempts to make its meaning clear to children. She presents the Mass as a play, the church as a stage, the different colors and things on and about the altar the scenery; the audience is God and his angels; the players are the priest and the servers; we are the crowd. The book is well done and accomplishes its purpose admirably; it is well printed and designed, and should be of interest to Catholic children and to teachers.