True Devotion to Mary by St Louis Marie Grignon de Montfort

This edition is complete, unlike others, which omit a few key points, such as fasting on Saturdays. Saint Louis de Montfort wrote this as part of a larger work Love of Eternal Wisdom. This is a beautiful book, which explans what devotion to the Blessed Virgin Mary truly is, and warns us against false devotion to Mary, which is quite common today.