Robie H. Harris Books

Un ouvrage bien structuré, franc, qui apporte des informations précises dans un langage simple et un style décontracté. Six parties : "Qu'est-ce que le sexe, nos corps, la puberté, les familles et...

Before you were three

By Robie H. Harris

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Follows the physical and mental development of a boy and a girl from their birth to age three.

Before you were three

By Robie H. Harris

Average: 0.00, 0 Ratings

Follows the physical and mental development of a boy and a girl from their birth to age three.

Hello Benny!

By Robie H. Harris

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Benny learns many things during the first year of his life. Includes nonfiction information about infant development.

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.