George M. Rooks Books

Paragraph Power

By George M. Rooks

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Paragraph Power, Second Edition

By George M. Rooks, George Rooks

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Share Your Paragraph, Second Edition

By George M. Rooks, George Rooks

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Conversar Sin Parar

By Diane F. Scholberg, George M. Rooks

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Conversar sin parar

By George Rooks

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Groupings of questions on particular topics designed to promote active classroom conversation among students who are familiar with the basic structure and elementary vocabulary of Spanish.

Power TOEFL CDROM

By George M. Rooks

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Power TOEFL Grammar Review for PC

By George M. Rooks

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Power TOEFL Deluxe 5.0 CDROM

By George M. Rooks

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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.