Charlotte Guilain Books

The moon

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Part of the "Acorn" series, this title provides young readers with an introduction to the basic concepts in the study of astronomy. It features levelled texts and links to core science topics that...

Astronauts Acorn Space

By Charlotte Guilain

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Stars

By Charlotte Guillain

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With simple, repetitive text and large coloured photographs this book shows readers what stars are made of, what size and colour they may be and how the Sun is a star.

All-Star - Book 1 (Beginning) - Set of Wall Posters

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All-Star - Book 2 (High Beginning) - Set of Wall Posters

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All-Star - Book 3 (Intermediate) - Set of Wall Posters

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All-Star - Book 4 (High-Intermediate - Low Advanced) - Set of Wall Posters

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All-Star - All Levels - PowerPoint Transparencies CD

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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.