Good (although brief) explanation of the ideas that formed Modernism in the early 20th century, in particular the work of Teilhard de Chardin and Karl Rahner. Unfortunately, the last few pages actually stated that there's "really no conflict between orthodoxy and Vatican II" and considers the election of John Paul II to be a good thing; possibly, the author's sole excuse in this regard is that the booklet was published before JPII showed his true colors (such as the Assisi meetings and the various apologies).