LeRoy Finkel Books

Basic 2nd Edition Self teaching Guides

By Robert L. Albrecht, Bob Albrecht

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Data file programming in BASIC

By LeRoy Finkel

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Apple BASIC Self teaching Guides

By Jerald R. Brown, Leroy Finkel

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Finkel Program Disk to Accompany Appl

By FINKEL PROGRAM

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Technology tools for the information age classroom

By LeRoy Finkel

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Microsoft Works through applications

By LeRoy Finkel

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A textbook for a half-year course on word processing, data bases, spreadsheets, and charting, using Version 2.0 of the Microsoft Works software program for the IBM PC or a compatible computer.

Microsoft Works through applications

By LeRoy Finkel

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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.