Harbo Books

Education for librarianship in the Nordic countries
Ruff Luck
Ruff Luck

By Christopher, Jeralds Scott, Harbo

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Black Hills Adventure
Black Hills Adventure

By Gary Harbo

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Frankensteins Monster And Scientific Methods
Easy Ocean Origami
Easy Ocean Origami

By Christopher L. Harbo

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Do you love the ocean? Now you can create your own paper sea with *Easy Ocean Origami*. With a few simple folds you'll make a blue whale, a sailbot, a windsurfer, and so much more. Grab some paper...

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Three Billy Goats Gruff
Grouchy Cat
Grouchy Cat

By Christopher Harbo, Scott Jeralds

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Computer Mouse
Grouchy Cat
Grouchy Cat

By Christopher Harbo, Scott Jeralds

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Purr Fect Getaway

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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.

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