Carolyn C. Wheater Books

Practice Makes Perfect Geometry

By Carolyn C. Wheater

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CliffsNotes GRE Cram Plan

By Carolyn C. Wheater

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Officer candidate tests for dummies

By Jane R. Burstein

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Officer Candidate Tests For Dummies gives you the instruction and practice you need to pass the service-specific candidate tests and further your military career as an officer in the Army, Air Forc...

Cliffsnotes Gre General Test Cram Plan

By Carolyn C. Wheater

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CliffsNotes GMAT cram plan

By William Ma

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Homework Helpers

By Carolyn C. Wheater

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Basic math and pre algebra

By Carolyn C. Wheater

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Math skills come easily to some people, but for others, the number just don't add up. This helpful guide gives you a solid foundation in mathematics, with clear explanations, handy tutorials, and p...

Algebra I

By Carolyn C. Wheater

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Starting with the very basics and reinforcing concepts with practice and tips along the way, "Idiot's Guides: Algebra I" makes a complex subject easier to grasp and helps students and adult learner...

Algebra II

By Carolyn C. Wheater

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CliffsNotes GRE General Test Cram Plan

By Carolyn C. Wheater

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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.