Jenn Harney Books

Goodnight already

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Bear has never been so tired but his next-door neighbor, a wide-awake duck, keeps disturbing his sleep. Bear has never been so tired, but his next-door neighbor, a wide-awake duck, keeps disturbin...

Hazy Bloom and the Tomorrow Power

By Jenn Harney, Jennifer Hamburg

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Hazy Bloom and the Pet Project

By Jenn Harney, Jennifer Hamburg

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Hazy Bloom and the Mystery Next Door

By Jenn Harney, Jennifer Hamburg

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Ducks away

By Mem Fox

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One by one five little ducklings tumble off the bridge into the river below--and mother duck follows them.

Wanda Seasongood and the Mostly True Secret

By Jenn Harney, Susan Lurie, Unknown

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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.