# Interpersonal communication and human relationships by Mark L. Knapp — resale value

Source: JunkPal price guide — https://junkpal.ai/products/interpersonal-communication-and-human-relationships-mark-l-knapp-ol2921026w

**Interpersonal communication and human relationships by Mark L. Knapp** — resale value from real closed eBay sales.

Live listings and the full sold-price history are on the page: https://junkpal.ai/products/interpersonal-communication-and-human-relationships-mark-l-knapp-ol2921026w

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%3DKnapp%2520Interpersonal%2520communication%2520human%2520relationships%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%3DKnapp%2520Interpersonal%2520communication%2520human%2520relationships%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 | 020592252X |
| Brand | Mark L. Knapp |
| Published | 1983 |
| Publisher | Allyn and Bacon |
| Pages | 426 |
| Editions | 10 |
| Category | Psychology |

## Interpersonal communication and human relationships resale value

**Interpersonal communication and human relationships** by Mark L. Knapp (1983). Across 10 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 1983 edition still relevant for studying interpersonal communication?**

Yes, this foundational text by Mark L. Knapp offers core concepts from 1983, making it a valuable historical and academic resource.

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

The ISBN for this book is 020592252X.

**How many pages are in this textbook?**

This edition of "Interpersonal Communication and Human Relationships" contains 426 pages.

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Full price guide: https://junkpal.ai/products/interpersonal-communication-and-human-relationships-mark-l-knapp-ol2921026w
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)"