Peter Lenhard Books

High-Speed Networking Technology: An Introductory Survey

By Harry J. R. Dutton

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Asynchronous Transfer Mode (Atm): Technical Overview

By Harry J. R. Dutton, Peter Lenhard

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Written for computer professionals who have a basic understanding of communications, this book offers a broad overview of the emerging technologies of very high-speed data and voice communications....

Inside Appn and Hpr: The Essential Guide to the New Sna

By Brian Dorling, Peter Lenhard, Velibor Uskokovic, Peter Lennon

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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.