Affiliate disclosure
Some links are affiliate links. If you buy through them, Bibliotheca Catholica may earn a small commission at no extra cost to you. It helps keep the library free.
Reading here is always free
The reading room comes first. Every hosted text is free to read on this site, and book pages always list the free reading editions before any place to buy a print copy. Purchase links appear in a separate, clearly labeled section, “Where to buy print editions,” with this disclosure beside them.
Bookshop.org
Bibliotheca Catholica is a Bookshop.org affiliate. Links to Bookshop.org on book pages, edition guides, and the Support page carry our affiliate ID. When you buy through them, Bookshop.org pays us a small commission at no extra cost to you, and part of each sale supports independent bookstores. We link a specific book only where our edition guide records its ISBN.
TAN Books
Bibliotheca Catholica is a TAN Books affiliate. The “Browse TAN Books” link on classic Catholic works and their authors’ pages is a referral link (it passes through lddy.no, TAN Books’ referral service, and opens tanbooks.com). If you buy from TAN Books after following it, we may earn a small commission at no extra cost to you. The link opens TAN’s store, not a particular book, and does not mean TAN publishes that title.
Other links
Links to other publishers, libraries, and bookstores, including the publisher searches in the edition guides, are ordinary links, and we earn nothing from them unless a program is added to this page. We do not use Amazon affiliate links.
How we choose
Commissions never decide what we recommend. Editions and translations are chosen on their merits, and a book with no affiliate link is listed just the same. Listing is not endorsement; see the Fidelity & Editorial Policy.
Privacy
Affiliate links are plain links. Our analytics record only that an outside link was clicked, with its domain and a general kind (such as bookshop or affiliate), as the Privacy section explains. Bookshop.org and TAN Books handle your purchase under their own privacy policies.
Other ways to help
You can also support the library directly, or get the free newsletter on Substack.