Gene Zion Books

Harry the Dirty Dog

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When a white dog with black spots runs away from home, he gets so dirty his family doesn't recognize him as a black dog with white spots.

No Roses for Harry!

By Gene Zion

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Harry the dog finds a graceful way to dispose of his new sweater with roses on it.

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.

Gene Zion Books

The plant sitter

All Falling Down

Harry and the Lady Next Door

Harry by the Sea

Harry the Dirty Dog

Harry the Dirty Dog

Hide and Seek Day

Jeffie's Party

No Roses for Harry!

Summer Snowman

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

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