website explains: "Numerary and coadjutor members are drawn from the Prelature's lay faithful (Numeraries and Associates), who receive Holy Orders after the necessary preparation. They are incorporated into the Priestly Society of the Holy Cross upon their ordination as deacons. See also Types of membership of Opus Dei References Sources Pope John Paul II. Apostolic Constitution Ut Sit Establishing the Personal Prelature of Opus Dei and the Vatican Declaration on Opus Dei Pope John Paul II. Christifideles Omnes, Papal Decree on Escriva's Heroic Virtues Cardinal José Saraiva Martins, St. Josemaría: God's Instrument for Opus Dei - statement of the Prefect of the Congregation for the Causes of Saints on St. Josemaría and Opus Dei's message of sanctity Escrivá, Josemaría. The Way, Furrow, The Forge, Christ is Passing By, Friends of God, Loyalty to the Church, Conversations with Msgr. Josemaría Escrivá, Scepter Publishers—the founder's teachings and explanations about Opus Dei; the most basic reference Müller, Beat. Opus Dei Information Handbook—a basic text given to journalists Shaw, Russel (1994). Ordinary Christians in the World --- from the Office of Communications, Prelature of Opus Dei in the US —collection of contributions to a theological symposium; contributors include Ratzinger, del Portillo, Cottier, dalla Torre, Ocariz, Illanes, Aranda, Burggharf and an address by John Paul II Berglar, Peter (1994). Opus Dei. Life and Work of its Founder. Scepter Publishers—in-depth historical study; available on-line —in-depth juridical study —a basic text; a French scholar's synthesis —in-depth ecclesiological study Pakaluk, Michael (June 1978). "Opus Dei In Everyday Life". The Family.—a typical day in the life of a member of Opus Dei Allen, John Jr. (2005). Opus Dei: an Objective Look Behind the Myths and Reality of the Most Controversial Force in the Catholic Church, Doubleday Religion. — book written after 300 hours of interviews by a journalist of National Catholic Reporter, a left leaning newspaper Allen, John Jr. (2005). Opus Dei: An Introduction, Chapter I: A Quick Overview, Chapter 4: Contemplatives in the Middle of the World, Chapter 7: Opus Dei and Secrecy - 4 on-line excerpts from John Allen's Opus Dei Allen, John Jr. (24 March 2005). "Decoding Opus Dei". An Interview with John Allen, by Edward Pentin. Newsweek. -- a short summary of his book Allen, John Jr. (January 2006). "Unveiling Opus Dei". An Interview with John Allen, by John Romanowsky. Godspy. External links Opus Dei Blogs - central hub of internet sources Priestly Society of