Maureen Callahan Books

American Predator

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INSTANT NEW YORK TIMES BESTSELLERAn Amazon “Best Book of 2019”A Washington Post “10 Books To Read in July” A Los Angeles Times “Seven Highly Anticipated Books for Summer Reading” A USA Today “20 of...

DHEA

By Maureen Callahan

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218 p. : 18 cm

The miracle nutrient cookbook

By Tamara Holt

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Diabetes Cookbook American Medical Association

By Karen A. Levin, Maureen Callahan R.D., American Medical Association.

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The New Mayo Clinic Cookbook

By Sheri Giblin, Cheryl Forberg R.D., Jennifer Nelson, Donald D. Hensrud, Maureen Callahan

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The New Mayo Clinic Cookbook

By Cheryl Forberg R.D., Maureen Callahan

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Skimming the fat

By Maureen Callahan

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Champagne supernovas

By Maureen Callahan

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Champagne Supernovas

By Maureen Callahan

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Diabetes Cookbook 2008 publication.

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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.