Sadie Chesterfield Books

The Lion, the Witch and the Wardrobe: Activity Book and Gel Pen

By Sadie Chesterfield

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King Kong: Coloring and Activity Book and Crayons

By Sadie Chesterfield

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Spider Man 3

By Sadie Chesterfield

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Spider Man 3

By Sadie Chesterfield, Lana Jacobs, Allyson Corbett

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Ice Age 2: Meet the Characters

By Sadie Chesterfield

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"On their journey, Manny, Sid, and Diego make new friends...and a few enemies. Join them as they meet these characters one by one--but be careful, the creatures of the deep are lurking within thes...

Transformers Animated: How to Draw

By Sadie Chesterfield

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Transformers: Optimus Prime versus Megatron

By Sadie Chesterfield

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Meet the Robinsons

By Sadie Chesterfield

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Meet the Robinsons

By Sadie Chesterfield

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Surf's Up: The Legend of Big Z

By Sadie Chesterfield

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Inspired by his idol 'Big Z,' Cody trains for a surfing competition.

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.