Introduction to Christianity Introduction to Christianity Introduction to Christianity () is a 1968 book written by Joseph Ratzinger (Pope Emeritus Benedict XVI). Considered one of his most important and widely read books, it presents a "narrative Christology" that demonstrates the place for faith is in the Church. The book offers a "remarkable elucidation of the Apostle's Creed" and gives an "excellent, modern interpretation of the foundations of Christianity". Originally published in German in 1968 under the title, "Einführung in das Christentum", Ratzinger restates the Apostles' Creed and the meaning of this foundational text in language that has a greater contemporary resonance than the
What Is Mathematics? alone held the copyright for the book. This resulted in Robbins receiving a smaller share of the royalties. Michael Katehakis remembers Robbins' interest in the literature and Tolstoy in particular and he is convinced that the title of the book is most likely due to Robbins, who was inspired by the title of the essay What is Art? by Leo Tolstoy. Robbins did the same in the book " Great Expectations : The Theory of Optimal Stopping " he co-authored with Yuan-Shih Chow and David Siegmund, where one can not miss the connection with the title of the novel "Great