Penelope Leach Books

Votre enfant de la naissance a la grande ecole
Votre enfant
Votre enfant

By Penelope Leach

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Votre enfant de 0 a 5 ans
Votre enfant de 0 a 5 ans

By Penelope Leach

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Die ersten Jahre deines Kindes
Die ersten Jahre deines Kindes.
Babyzeit
Babyzeit

By Penelope Leach

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El primer ano es fundamental
El primer ano es fundamental

By Penelope Leach

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New guide to pregnancy and parenting from Penelope Leach, including guidance on practical issues such as feeding, sleeping, and crying.

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LA Infancia
LA Infancia

By Penelope Leach

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Bebe Nino
Bebe Nino

By Penelope Leach

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Bebe y Nino Baby and Child

Related Articles from our Blog

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.

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