Lisa Andrews Books

National construction estimator 1988

By Lisa Andrews

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Labor and material costs in dollars and cents: residential, commercial, and industrial.

Milton the Mouse Starts School

By Lisa Andrews

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When Elinor is forced to marry William de Valences, it is for her lands, not her beauty. But King Henry makes it a condition of marriage that William should provide proof of Guy de Riddington's plo...

Too Late for Love

By Lisa Andrews

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Dangerous Deception

By Lisa Andrews

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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.