Pierre Marie Valat Books

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"This innovative First Discovery board book--with playful windows and a lift-up flap--is a perfect introduction to colors for toddlers and preschoolers."

Animal Faces 15 Punch Out Masks

By Pierre Marie Valat

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Fun Faces

By Pierre Marie Valat

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Dinosaur Faces

By Pierre Marie Valat

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Ffrwythau

By Pierre Marie Valat

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Animal Faces

By Pierre Marie Valat

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Living in Australia Pocket Worlds

By Penny Stanley Baker, Pierre Marie Valat

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Sport

By Pierre Marie Valat

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Shapes

By Pierre Marie Valat

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Let s Look at Castles First Discovery Torchlight

By Pierre Marie Valat

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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.