Helena Sorensen Books

The Door on Half Bald Hill

By Nigel Patterson, Janet Devlin, Helena Sorensen, Robert Hook

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Seeker

By Helena Sorensen

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Shiloh

By Helena Sorensen

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The story of the world is the story of things forgotten, of desperate people cowering in the dark, blind to who they truly are. In Shiloh it is no different, except there, the darkness is tangible....

The Door on Half Bald Hill

By Helena Sorensen, Stephen Crotts

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Songbird OOP

By Helena Sorensen

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Shiloh OOP

By Helena Sorensen

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Shiloh OOP

By Helena Sorensen

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Seeker OOP

By Helena Sorensen

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Songbird OOP

By Helena Sorensen

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Seeker OOP

By Helena Sorensen

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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.