See this legally free ebook:

  • Thesaurus Fidelium: A Manual for Those Who Desire to Lead Prayerful Lives in the World, compiled by a Carmelite Tertiary (H.M.K.), with a Preface by the Very Rev. Robert Hugh Benson [1871-1914] (London, New York, Calcutta: Longmans, Green and Co., 1914). With Imprimatur. Available in epub, mobi, pdf and other format at Internet Archive.

On the Feast of Our Lady of Mount Carmel in the Roman Rite. For other texts and ebooks, you may access the List of Free eBooks (Arranged by Title), the List of Free eBooks (Grouped by Subject), the List of Worth-It Catholic Books & eBooks, and the main page of the Catholic eBooks Project.