# Secreto Más Extraño by Earl Nightingale — resale value

Source: JunkPal price guide — https://junkpal.ai/products/secreto-m-s-extra-o-earl-nightingale-ol29146358w

**Secreto Más Extraño by Earl Nightingale** — resale value from real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/secreto-m-s-extra-o-earl-nightingale-ol29146358w

Values are medians of real closed eBay sales, updated 2026-06-18. 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%3DSecreto%2520M%25C3%25A1s%2520Extra%25C3%25B1o%2520by%2520Earl%2520Nightingale%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%3DSecreto%2520M%25C3%25A1s%2520Extra%25C3%25B1o%2520by%2520Earl%2520Nightingale%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

eBay links are affiliate links: JunkPal may earn a commission at no cost to you.

## Details

| Field | Value |
| --- | --- |
| UPC / EAN | 9781640952478 |
| Brand | Earl Nightingale |
| Published | 2019 |
| Publisher | Independently published |
| Pages | 75 |
| Editions | 3 |
| Category | Self-help |

## Secreto Más Extraño resale value

**Secreto Más Extraño** by Earl Nightingale (2019). Across 3 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 a rare edition of Secreto Más Extraño?**

This book is listed as the 3rd edition, published in 2019 by an independent publisher.

**What is the ISBN for this self-help book?**

The ISBN for Secreto Más Extraño is 9781640952478.

**How long is the book?**

This edition of Secreto Más Extraño contains 75 pages.

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Full price guide: https://junkpal.ai/products/secreto-m-s-extra-o-earl-nightingale-ol29146358w
How these values are computed: https://junkpal.ai/methodology
Cite as: "JunkPal price guide value as of 2026-06-18, based on real sold listings (junkpal.ai)"