Barbara Hehner Books

Tunnel King

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Wally Floody, a Canadian miner turned pilot during World War II, was shot down and put in a prisoner-of-war camp. Determined to escape, he eventually joined a group that began organizing the large...

The desert hawk

By Barbara Hehner

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Blue planet

By Barbara Hehner

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Explores, in text and photographs, the various ecosystems of the Earth and how humans are affecting the delicate balance of the natural world.

Ice Age Mammoth

By Barbara Hehner

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Ice Age Sabertooth

By Barbara Hehner

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Ice Age Cave Bear

By Barbara Hehner

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Chewing the cud

By Jean Little

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Dick King-Smith recounts his life from soldier to farmer to salesman to factory worker to teacher to, finally, author.

Ice Age Mammoth

By Barbara Hehner

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Ice Age Cave Bear

By Barbara Hehner

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Ice Age Sabertooth

By Barbara Hehner

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.