Modernism is still a pernicious heresy prevalent today more than any other heresy because it is the "synthesis of all heresies" as St. Pius X stated. However, from experience reading online blogs, forums, and news reports within orthodox circles, it seems many do not know the principles of Modernism. It is mostly used as a pejorative, not a smart accusation or judgement. With this easy to understand catechism, you will learn the methods of the Modernists. For example, their worldview, philosophical principles, and much more. A highly recommended read for every Catholic today.