Maria J. Kefalas Books

Promises I Can Keep

By Kathryn Edin, Frank Furstenberg, Maria J. Kefalas

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Harnessing Grief

By Maria J. Kefalas

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The inspiring story of a mother who took unimaginable tragedy and used her grief as a force to do good by transforming the lives of others.When Maria Kefalas’s daughter Calliope was diagnosed...

Harnessing Grief

By Maria J. Kefalas

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The inspiring story of a mother who took unimaginable tragedy and used her grief as a force to do good by transforming the lives of others.When Maria Kefalas’s daughter Calliope was diagnosed...

Coming of Age in America

By Jennifer Holdaway, Maria J. Kefalas, Mary C. Waters, Patrick J. Carr

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Hollowing Out the Middle

By Maria J. Kefalas, Patrick J. Carr

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Harnessing Grief

By Maria J. Kefalas

Average: 0.00, 0 Ratings

The inspiring story of a mother who took unimaginable tragedy and used her grief as a force to do good by transforming the lives of others.When Maria Kefalas’s daughter Calliope was diagnosed...

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.