Catherine Sefton Books

The haunting of Ellen

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A teenage girl living on the coast of Northern Ireland begins to be haunted by a ghost who seems to be asking for her help.

In a Blue Velvet Dress

By Catherine Sefton

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With the help of a ghost in a blue velvet dress, bookworm Jane survives the disaster of finding herself on vacation without a single book at her disposal.

The Haunting of Ellen

By Catherine Sefton

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The back house ghosts

By Catherine Sefton

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In a blue velvetdress

By Catherine Sefton

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The ghost and Bertie Boggin

By Catherine Sefton

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Bertie Boggin and the ghost again!.

By Catherine Sefton

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The haunted schoolbag

By Catherine Sefton

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Along a Lonely Road Puffin Books

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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.