Brian Lester Books

San Francisco 49ers

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Discusses the beginnings of the San Francisco 49ers, the greatest and lowest moments of the team, the best players and coaches, and shares other fun facts that help round out 49er's history.

Essential Health

By M. K. Ehrman, Michael Fallon, J. Chris Roselius, Brian Lester, Pete Heiden

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R U in Using Technology Responsibly

By Brian Lester

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R U in Using Technology Responsibly

By Brian Lester

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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.