Norma Johnston Books

When sixteen-year-old Laura attends her wealthy, strong-willed grandmother's birthday celebrations in a village in Pennsylvania her grandmother is restoring, she becomes dramatically reacquainted w...

Louisa May

By Norma Johnston

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Harriet

By Norma Johnston

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A biography of the nineteenth-century author famous for the novel "Uncle Tom's Cabin" which denounced slavery and intensified the disagreement between the North and South.

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.