See this legally free ebook:

  • A Complete Catechism of the Catholic Religion, Preceded by a Short History of Revealed Religion, from the Creation to the Present Time, 6th American edition, with questions for examination, by Rev. Joseph Deharbe, S.J., translated by Rev. John Fander, edited by Rev. James J. Fox, D.D. and Rev. Thomas McMillan, C.S.P. (New York: Schwartz, Kirwin & Fauss, 1912). With Imprimatur. Available in various formats at Internet Archive and Open Library. Another copy, conformed to the Codex Juris Canonici, is available in various formats at Internet Archive and Open Library. [N.B., This Catechism provides a thorough exposition of the Christian Faith, together with the Scriptural bases for its teachings. For apologetics and evangelization, particularly in relation to Christians separated from the one true Church, this may be the best Catechism available.]

On the Feast of St. Thomas the Apostle in the Extraordinary Form of the Roman Rite, and the Memorial of St. Peter Canisius in the Ordinary Form of 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!