Amy MacDonald Books

When Simon's Great Aunt Matilda becomes the substitute teacher for his unruly fifth-grade class, her unique way of looking at things gives the students a new perspective on learning.

Rachel Fister's Blister

By Amy MacDonald

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Rachel Fister's blister sends adults scurrying for a cure, but nothing seems to help until they appeal to the Queen for advice.

Little Beaver and the echo

By Amy MacDonald

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Unaware that the voice from across the pond telling him he's lonely is his echo, a little beaver sets out to make a friend of that voice, encountering real animal friends on the way.

Let's play

By Amy MacDonald

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O mikros kastoras kai i icho o mikros kastoras kai e echo

By Amy MacDonald

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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.