Download or read book Catholicism: A Very Short Introduction written by Gerald O'Collins and published by Oxford University Press, USA. This book was released on 2008-11-27 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: What are the origins of the Catholic Church? How has Catholicism changed and adapted over the centuries? What challenges does the Catholic Church face in the twenty-first century? Gerald O'Collins answers these and other questions in this clear, accessible introduction to the largest and oldest institution in the world.