Stephen Hearne Books

CHSPE

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Includes 3 exams based on the official CHSPE - balanced to include every topic and type of question you can expect on the actual exam. Two practice tests on CD are given in a timed format with auto...

Nj Ask8 Mathematics

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Nj Ask8 Mathematics

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Cahsee With Testware On Cdrom

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California Star Mathematics Grades 8 9

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Basic Math Refresher

By Stephen Hearne, Adel Arshaghi

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CAHSEE Mathematics Test

By Stephen Hearne

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New York State Grade 8 Math

By Stephen Hearne

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Basic Math Refresher

By Stephen Hearne, Adel Arshaghi

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CAHSEE Mathematics Test

By Stephen Hearne

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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.