Maria Langer Books

Quicken(R) 2004: The Official Guide

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Demonstrates upgraded features and explains how to use the finance program to track funds, manage investments, pay bills, balance accounts, collect tax information, and bank online.

Quicken 2005 The Official Guide

By Maria Langer

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Quicken 2007: The Official Guide

By Maria Langer

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Word 2001 X Advanced for Macintosh: Visual QuickPro Guide

By Maria Langer

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Mac OS X 10.2 Advanced: Visual QuickPro Guide

By Maria Langer

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Microsoft Office Word 2003 for Windows

By Maria Langer

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Microsoft Office Excel 2003 for Windows

By Maria Langer

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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.