Victoria Costello Books

The everything guide to a happy marriage

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Every newly married couple wants to beat the odds and make their marriage work. Unfortunately, 50 percent of first marriages and 65 percent of second marriages fail. Clearly, couples need guidance...

The Complete Idiot's Guide to Child & Adolescent Psychology

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The complete idiot s guide to writing a memoir

By Victoria Costello

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Packed with prompts, exercises, and inspirational examples to help you get your story out of your head and onto the page, this guide shows you a better way to share your story.

Everything Guide to a Happy Marriage

By Stephen Martin, Victoria Costello

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Everything Parent s Guide to Children with OCD

By Stephen Martin, Victoria Costello

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Rein in Your Brain

By Cynthia Moreno Tuohy, Victoria Costello

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Rein in Your Brain

By Cythnia Moreno Tuohy, Victoria Costello, Joseph Nowinski

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The Complete Idiots Guide to the Chemistry of Love Complete Idiots Guides Lifestyle Paperback

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A lethal inheritance

By Victoria Costello

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The Complete Idiot's Guide to Writing a Memoir

By Victoria Costello

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Helps readers write memoirs, personal essays, and life stories of every length and type.

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.