Charlotte Guillain Books

Our stomachs

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Uses simple language to introduce what the stomach is, how it digests food, and how to stay healthy. Includes notes for parents and teachers. Suggested level: junior.

Our blood

By Charlotte Guillain

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Part of a series that introduces readers to the function, appearance and purpose of some important parts of the human body, this title uses simple text and photographs to explain one organ and its...

Our brains

By Charlotte Guillain

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Simple introduction to the work that our brain does - how it controls other body parts and how to keep it healthy.

Our Bones

By Charlotte Guillain

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Our muscles

By Charlotte Guillain

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This series introduces parts of the human body and why we need them. Includes notes for parents and teachers. Ages 5+.

Our skin

By Charlotte Guillain

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Simple introduction to the work that our largest organ, the skin, does- how it protects the body and how to keep it healthy.

Our lungs

By Charlotte Guillain

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Our blood

By Charlotte Guillain

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Our brains

By Charlotte Guillain

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Our bones

By Charlotte Guillain

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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.