Leyland Perree Books

Toad s road code

By Leyland Perree

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Frog On The Log

By Joelle Dreidemy, Leyland Perree

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Quien es quien en brujilandia

By Leyland Perree

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Bienvenido a Brujilandia, una ciudad con más brujas de las que podrías hacer aparecer con una varita mágica. Pero lo difícil es distinguir unas de otras, saber quién es quién. Diviértete identifica...

Frog on the log

By Leyland Perree

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The goat that gloats

By Leyland Perree

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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.