# P.E.T by Gordon, Thomas — resale value

Source: JunkPal price guide — https://junkpal.ai/products/p-e-t-gordon-thomas-ol3519619w

**P.E.T by Gordon, Thomas** — resale value from real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/p-e-t-gordon-thomas-ol3519619w

Values are medians of real closed eBay sales, updated 2026-07-16. 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%3DGordon%2520Thomas%2520PET%2520psychology%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%3DGordon%2520Thomas%2520PET%2520psychology%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 | 9780452251175 |
| Brand | Gordon, Thomas |
| Published | 1970 |
| Publisher | Wyden |
| Pages | 338 |
| Editions | 21 |
| Category | Psychology |

## P.E.T resale value

**P.E.T** by Gordon, Thomas (1970). Across 21 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 1970 edition still valuable for academic study?**

As a 21st edition, it holds historical value in psychology, though modern texts may be preferred for current research.

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

The ISBN for P.E.T by Gordon, Thomas is 9780452251175.

**How many pages does this psychology book contain?**

This edition contains 338 pages.

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Full price guide: https://junkpal.ai/products/p-e-t-gordon-thomas-ol3519619w
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-07-16, based on real sold listings (junkpal.ai)"