See this legally free ebook:
- The Three Archangels and the Guardian Angels in Art, by Eliza Allen Starr (Chicago, Eliza Allen Starr, 1899). May be read online, and available in various formats (pdf, epub, kindle/mobi, etc.) at Internet Archive and Internet Archive (2d copy).
Readers are likewise advised to read Paragraphs 213-217 (on devotion to the holy angels) of the Directory on Popular Piety and the Liturgy: Principles and Guidelines promulgated by the Congregation for Divine Worship and the Discipline of the Sacraments (December 17, 2001), Paragraph 217 of which states:
“The practice of assigning names to the Holy Angels should be discouraged, except in the cases of Gabriel, Raphael and Michael whose names are contained in Holy Scripture.”
On the Feast of the Holy Guardian Angels in the Roman Rite. For other legally free ebooks, you may access the List of Free eBooks (Arranged by Title) and the List of Free eBooks (Grouped by Subject). Blessed be God in His angels and in His saints!