Claire Llewellyn Books

Saints and Angels

By Claire Llewellyn

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Kingfisher Readers In the Rainforest Level 2

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African Savannah

By Claire Llewellyn

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It s all about ... deadly dinosaurs

By Claire Llewellyn, Thea Feldman

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Deadly Dinosaurs tells you everything you want to know about these prehistoric monsters, from flying reptiles and gentle giants such as Diplodocus to deadly killing machines such as Allosaurus and...

Chimpanzees Level 2

By Claire Llewellyn

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Record Breakers The Biggest

By Claire Llewellyn, Thea Feldman

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Kingfisher Readers

By Claire Llewellyn

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My Best Book of Bugs

By Claire Llewellyn

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My Best Book of Sharks

By Claire Llewellyn

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Kingfisher Readers L2

By Claire Llewellyn, Thea Feldman

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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.