Erik Rozell Books

MCSE TestPrep: TCP/IP, Second Edition

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With its emphasis for filling knowledge holes through practice and review material, this second edition will be an ideal supplement for all MCSE candidates.

Mcse: Proxy Server 2 Study Guide

By Erik Rozell, Todd Lammle, Chellis

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This Microsoft Certified Professional Approved Study Guide provides full coverage of each objective for the Implementing and Supporting Microsoft Proxy Server 1.0 exam, a popular elective for the M...

Configuring Cisco AVVID

By Erik Rozell, Wayne Lawson, Sandy C. Kronenberg, Syngress Media

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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.