By the Book
Substacknewsletter · by By the Book · English
Feasting on the wisdom of the ages.
- Audience
- Not shown publicly
- We show a dash rather than guess
- Observed frequency
- Every two weeks
- From 5 posts indexed in the last 90 days
- Last post
- Oct 17, 2026
- 25 days ago
- Likely audience
- philosophy students
- Inferred from post content
By the Book is a Substack newsletter by By the Book covering St. Thomas Aquinas, ethics and virtue theory and philosophy of self-love. NewsletterFIT indexed 5 posts from it in the last 90 days, most recently on Oct 17, 2026.
Topics
- St. Thomas Aquinas
- ethics and virtue theory
- philosophy of self-love
- Summa Theologiae
- St. Thomas Aquinas Summa Theologiae
Recent posts
- Thomas Aquinas:…
- Thomas Aquinas:…
- A Mysterious…
- Taking Good…
- Invitation: The…
Sponsors detected
No sponsored posts detected in the last 180 days of indexed posts.
Detected automatically from posts marked as sponsored. Detection can miss or misread placements.
See the full picture on By the Book
Subscriber momentum over time, every detected sponsor with the source post, companies and people it mentions, guests, and an alert when any of it changes.
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Compiled from public pages · refreshed Nov 5, 2026 · How NewsletterFIT collects and labels data