Constance Petersen Books

Visual Basic 4.0 How-To: The Definitive Visual Basic 4 Problem-Solver

By Karl Peterson, Constance Peterson, Constance Petersen, Zane Thomas, Thomas, Zane, Peterson, Karl, Peterson, Constance, Petersen, Constance, Thomas, Zane

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Crammed with practical, step-by-step solutions to common Visual Basic programming problems, this invaluable book/CD-ROM package will save hundreds of programming hours. Presents Visual Basic 4's po...

Programming The Web With Visual Basic .NET

By Constance Petersen, Lynn Torkelson, Zac Torkelson, Torkelson, Lynn.

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Programming the Web with Visual Basic .NET is a comprehensive guide to building web applications and services using Visual Basic .NET. It is written especially for experienced Visual Basic programm...

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.