This classic by St. Louis de Montfort is still considered to be the ï¬nest book ever written about the Rosary. With over 5 million copies sold, it is clear why this book has been read by Catholics all across the world for centuries. Secret of the Rosary discusses why the Rosary is the most important prayer we can and how to pray it well. This new Premium UltraSoft edition is both beautiful and durable, making it a perfect companion in your Marian devotion.