Clare De Marco Books

Alex and the Troll. Clare de Marco

By Clare De Marco

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Alex and the Troll. by Clare de Marco and Andy Elkerton

By Clare De Marco

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The mad scientist next door

By Clare De Marco

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"Ella's next door neighbor, Mr. Willis, is mean. She stays out of his way as much as possible. But when she accidentally sends her baby brother's favorite teddy bear into Mr. Willis' garden, Ella i...

The mad scientist next door

By Clare De Marco

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Lily long pockets

By Clare De Marco

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Lily loves to carry as many treasures as she can. But soon her pockets have burst! Can she and Dad come up with a plan for some super long pockets? The Tadpoles series contains fun, original storie...

Lily long pockets

By Clare De Marco

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The animals football final

By Clare De Marco

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The mermaid s socks

By Clare De Marco

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The Mermaid's Socks is a funny story for all little mermaid fans who are beginning to read on their own. Perfect for children aged 4+ who are reading at book band red. When Princess Bubble the merm...

The mermaid's socks

By Clare De Marco

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Freddy s Teddy

By Clare De Marco

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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.