# On being and essence by Thomas Aquinas — resale value

Source: JunkPal price guide — https://junkpal.ai/products/on-being-and-essence-thomas-aquinas-ol14934417w

**On being and essence by Thomas Aquinas** — resale value from real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/on-being-and-essence-thomas-aquinas-ol14934417w

Values are medians of real closed eBay sales, updated 2026-06-19. They are estimates for reference, not offers or appraisals — condition, completeness and edition move them a lot, so compare against the sold listings before pricing anything.

## Check the market

- [Sold listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DThomas%2520Aquinas%2520On%2520Being%2520and%2520Essence%26LH_Sold%3D1%26LH_Complete%3D1%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-sold&p=md-sold) — the closed sales these medians are computed from
- [Live listings on eBay](https://junkpal.ai/api/go?to=https%3A%2F%2Fwww.ebay.com%2Fsch%2Fi.html%3F_nkw%3DThomas%2520Aquinas%2520On%2520Being%2520and%2520Essence%26mkcid%3D1%26mkrid%3D711-53200-19255-0%26siteid%3D0%26campid%3D5339166094%26toolid%3D10001%26mkevt%3D1%26customid%3Dmd-live&p=md-live) — what sellers are asking right now

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## Details

| Field | Value |
| --- | --- |
| UPC / EAN | 9780888442505 |
| Brand | Thomas Aquinas |
| Published | 1869 |
| Publisher | Pontifical Inst of Medieval |
| Pages | 66 |
| Editions | 16 |
| Category | Philosophy |

## On being and essence resale value

**On being and essence** by Thomas Aquinas (1869). Across 16 editions. Used-book value depends heavily on edition (first printing vs. reprint), condition, dust jacket, and whether it's signed. First editions and out-of-print titles command the biggest premiums.

### What drives the price

First editions/first printings, intact dust jackets, signatures, and unmarked pages are the top value drivers. Book-club editions and later reprints are worth far less.

## FAQ

**Is this 1869 edition of Aquinas rare?**

Yes, this specific 1869 publication from the Pontifical Inst of Medieval is a notable historical edition.

**How many editions of this book exist?**

There are 16 known editions of "On Being and Essence" by Thomas Aquinas.

**What is the ISBN for this book?**

The ISBN for this volume is 9780888442505.

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Full price guide: https://junkpal.ai/products/on-being-and-essence-thomas-aquinas-ol14934417w
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-06-19, based on real sold listings (junkpal.ai)"