Jill McDonald Books

Learn from home and explore the world with these fun and easy board books!Toddlers can learn all about the lives of Arctic animals in the popular Hello, World! board book series, with easy-to-under...

Hello, World! Weather

By Jill McDonald

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Learn from home and explore the world with these fun and easy board books!Young children are fascinated with weather and the seasons. Here's a book that teaches them about different types of weathe...

Hello, World! Backyard Bugs

By Jill McDonald

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Learn from home and explore the world with these fun and easy board books!Young children love to look at bugs. Here’s a Hello, World! board book that teaches toddlers all about the insects in their...

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.