True Devotion to Mary

Part of a series on the
Mariology
of the Catholic Church
Immaculate Conception
Immaculate Conception by Bartolomé Esteban Murillo (c. 1675)
Overview
Titles of Mary
Prayers and hymns
Devotional practices
Movements and societies
Apparitions
Approved, with widespread liturgical
veneration endorsed by the Holy See:
Key Marian feast days
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True Devotion to Mary is a 1712 book by Saint Louis de Montfort on the Roman Catholic theme of devotion to the Blessed Virgin Mary. The original manuscript was discovered in 1842. The book was first published in 1843, more than a century following de Montfort's death in 1716.

The book was cited as an influence on the religious beliefs of Pope John Paul II, who borrowed his apostolic motto Totus Tuus from the book.