Heather Dyer Books

Tina et le pingouin

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Tina helps a penguin escape from the zoo, but soon she realizes that a penguin is a very peculiar pet - and that's just the tip of the iceberg.

The House Built on Sand The stories Jesus told

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Magic in the city

By Heather Dyer

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When Jake and Simon Grubb move to England, a street performer presents them with three mysterious, powerful gifts that allow them and their cousin Hannah to seek out fantastic adventures.

The girl with the broken wing

By Heather Dyer

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When the twins are in bed, an angel flies into their bedroom.

The flying bedroom

By Heather Dyer

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Elinor's bedroom looks ordinary. But it's not. When Elinor goes to sleep, her bedroom can fly ... Elinor never knows where she'll wake up. A tropical island, in a theatre show, helping pirates, on...

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.