To conspiracy theorists, Opus Dei is a highly secretive and powerful international organization. To its members, however, Opus Dei is a spiritual path, a way of incorporating the teachings of Jesus into everyday life; "a way of sanctification in daily work and in the fulfillment of the Christian's ordinary duties."

In Ordinary Work, Extraordinary Grace, Scott Hahn, a member of Opus Dei, describes the organization’s founding, its mission, and its profound influence on his life. In Scott Hahn's own words, "This book is about Opus Dei's biblical theology and biblical spirituality." Hahn cautions that this book is not an official statement from Opus Dei, however, he recounts the invaluable part Opus Dei played in his conversion from Evangelical Christianity to Catholicism and explains why its teachings remain at the center of his life. 

In 1982, Pope John Paul II allowed Opus Dei to become the first personal prelature (or office) of the Church. Hahn estimates that there are currently 85,000 members, or "faithful", in Opus Dei with a majority being lay men and women. 

Through stories about his job, his marriage, his role as a parent, and his community activities, Hahn shows how Opus Dei’s spirituality enriches the meaning of daily tasks and transforms ordinary relationships.  He offers inspiring insights for reconciling spiritual and material goals, discussing topics ranging from ambition, workaholics, friendship, and sex, to the place of prayer and sacrifice in Christianity today. 

He also reveals that the true foundation of Opus Dei is in divine filiation . As St. John writes, "See what love the Father has given us, that we should be called children of God; and so we are!" (1 John 3:1). Hahn explores the idea that by becoming human Jesus sanctified "everything that fills up a human life: friendship, meals, family, travel, study, and work."

Engaging and enlightening, Ordinary Work, Extraordinary Grace is at once a moving personal story and an inspiring work of contemporary spirituality.