Susan Callahan Books

Mothers Need Time-Outs, Too: It's Good to be a Little Selfish--It Actually Makes You a Better Mother

By Susan Callahan, Katrin Schumann, Anne Nolen

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Resource center guide

By Susan Callahan

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Hasta las mamas merecen descanso

By Susan Callahan

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Written by three mothers in diverse working situations, the book challenges the notion that good parents should be selfless and shares hundreds of insights on how many moms have used time-out sessi...

Mothers Need Time Outs Too

By Susan Callahan

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Emily s New Beginning

By Susan Callahan

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New Way

By Susan Callahan

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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.