Examinations Books

First aid for the COMLEX

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"Written by an exceptional team of former teaching fellows at the Chicago College of Osteopathic Medicine, First Aid for the® COMLEX presents high-yield bulleted information on OMM techniques with...

Radiology

By Cheri L. Canon

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McGraw-Hill's GRE

By Steven W. Dulan

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Contains: 4 full-length practice tests; free access to 1 more test online; tips for writing GRE essays; hundreds of practice problems with explanations; complete review of math and verbal skills; s...

McGraw-Hill's GRE

By Steven W. Dulan

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CompTIA network exam guide

By Michael Meyers

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Mike Meyers CompTIA A guide

By Michael Meyers

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First aid for the internal medicine boards

By Cindy J. Lai, Thomas E. Baudendistel, Tao Le, Peter Chin Hong

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McGraw Hill's GMAT

By James Hasik

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500 AP microeconomics macroeconomics questions to know by test day

By Brian Reddington

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"Sharpen your subject knowledge, strengthen your thinking skills, and build your test-taking confidence with 500 AP-style questions with answers, full explanations of why an answer is correct or no...

CompTIA A certification study guide

By Jane Holcombe

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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.