The Church's Most Powerful Novenas has a very insightful foreword by Fr. Benedict J. Groeschel, C.F.R. It contains many of the Church's treasured petitions to Jesus, the Holy Spirit, the Blessed Virgin Mary, Saints, Mother Teresa, and a section devoted to American Saints. Before each novena, there is a history of that novena. There is also a listing of shrines with their addresses, telephone numbers, and websites in the back of the book.
A novena is a term used to describe a continuous praying of a formula nine consecutive times, usually nine consecutive days or once a week for nine weeks. The number nine derives from the time Mary and the Apostles waited for the coming of the Holy Spirit between Ascension and Pentecost.