Vince Kellen Books

Delphi: A Developer'S Guide/Book And Cd-Rom

By Vince Kellen, Bill Todd, Bill Todd And Vince Kellen With Ray Novak And Brad Saenz

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"Delphi is one of the most popular client/server development environments currently available for the professional programmer. With its ease of use unparalleled by any other language and raw power...

Delphi 2: A Developer'S Guide

By Vince Kellen, Bill Todd, Ray Novak, Brad Saenz

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This fully-updated new edition includes coverage of all the new tools and features in version 2. You'll learn how to use the 32-bit integrated development environment that has won countless industr...

Paradox For Windows Power Programming/Book And Disk

By Que Development, Vince Kellen, Group, Que Development Group

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Delphi 2

By Vince Kellen

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Developing Client/Server Applications With Delphi/Book And Cd-Rom

By Vince Kellen, Bill Todd

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Creating Paradox For Windows Applications

By Vince Kellen, Bill Todd

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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.