Kathy Zahler Books

McGraw-HIll's MAT: Miller Analogies Test

By Kathy Zahler

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McGraw-Hill's New MCAT with CD-Rom

By Shaun Murphree, Kathy Zahler, Jennifer M. Warner, George J. Hademenos, Candice McCloskey

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McGraw-Hill's Conquering the New GRE Verbal and Writing

By Kathy A. Zahler

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McGraw-Hill's 6 GRE Practice Tests

By Kathy A. Zahler

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McGraw-Hill Education TASC: The Official Guide to the Test

By Kathy A. Zahler

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Prepare for the TASC exam and includes authentic TASC questions with explanations, full-length practice TASC exams and review in all five subject areas.

McGraw-Hill Education 500 Evolve Reach (HESI) A2 Questions to Know by Test Day

By Kathy A. Zahler

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Test Prep Your IQ with the Essentials of Cultural Literacy 1st edition

By Diane Zahler, Arco

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3 MCAT practice tests

By George J. Hademenos

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xxv, 386 pages : 28 cm

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.