Marion O Brien Books

Birthing Normally

By Michel Odent MD, Gayle Peterson, Keith Whitaker, Pam England, Marion O Brien, Lewis Mehl MD, Patricia Carvin, Linda Baziuk, Lyn Jones

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Beyond the autism diagnosis

By Marion O Brien

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First Days a Notebook for Parents of Infants Receiving Care in the Nicu

By Kathleen McClusky Fawcett, Marion O Brien

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Inclusive child care for infants and toddlers

By Marion O Brien

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Caregivers naturally have concerns when a baby or toddler with special needs joins a group of typically developing children in child care. To answer those concerns, this book offers practical guide...

Quick Quality Check for Infant and Toddler Programs

By Marion O Brien, Michelle Knoll

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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.