The Right Reverend Msgr. Paul J. Glenn, Ph.D. and S.T.D., was a priest and author of the twentieth century. In Apologetics: A Philosophic Defense and Explanation of the Catholic Religion, his purpose was to direct his readers towards the welfare of ideas that Catholics must face in modern society. Father Glenn also served as President of the College-Seminary of St. Charles Borromeo in Columbus, Ohio. His work was originally published in 1931 by the B. Herder Company, and also received the Nihil Obstat and Imprimatur.