Karen Branson Books

The potato eaters

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A family attempts to withstand the hardships brought about by a blight, which strikes Ireland in the 1840's, ruining potato crops.

Streets of gold

By Karen Branson

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Fourteen-year-old Maureen and her family, refugees from the Irish potato famine of the 1840's, arrive in New York and struggle to make a place for themselves in an environment more hostile than the...

Human biology lab book Quercus science program

By Karen Branson

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Biology of plants and animals

By Karen Branson

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American history activities Quercus American history program

By Karen Branson

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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.